Tutorials in Introductory Physics
1st Edition
ISBN: 9780130970695
Author: Peter S. Shaffer, Lillian C. McDermott
Publisher: Addison Wesley
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 15.3, Problem 8bTH
Two cars, P and Q, travel in the same direction on a long, straight section of highway. Car P passes car Q, and is adjacent to car Q at time
Suppose that car P and car Q is moving with constant speed but car Q is speeding up. At time
- , is the magnitude of the instantaneous velocity of car P greater than, less than, or equal to the magnitude of the instantaneous velocity of car Q? Explain.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
A red Mazda Miata (type of car) accelerates from rest at a rate of a₁ in the positive x direction for a
total of 20.0 seconds. The Mazda then holds their speed and direction constant for a 20.0
additional seconds. Finally, while continuing in the positive x direction, the Mazda slows down at a
rate of a2 until the car stops moving.
We want to determine the total distance traveled by the Mazda and the average speed of the car if
we know a₁ and ₂.
(A) Sketch a graph of velocity versus time for this short trip. Label the time axis to indicate which
portions of the curve(s) correspond to the above intervals. Identify and write knowns and
unknowns
(B) Without using numerical values, determine which physics equations of motion will help solve
this problem. Simplify as useful for this particular case.
(C) If a₁ = 2.0 m/s² and a₂ = -3.0 m/s² determine the total distance traveled during all intervals
and the average velocity of the Mazda.
Boats A and B are participating in a race. Their
velocities are represented by vectors a and b
respectively.
Which option best describes the meaning of
the following statement?
ā
= b
Choose 1 answer:
A
B
The two boats move at the same speed and in
the same direction.
The two boats move at the same speed, but not
necessarily in the same direction.
The two boats move in the same direction, but
not necessarily at the same speed.
Sarah is driving on a freeway in a forest at 13.0m/s when suddenly a deer runs in front of her and stands still out of fright. The deer is 20.0m in front of Sarah when she steps on the brakes with a deceleration of magnitude 4.59 m/s2A) Find the stopping distance of Sarah. Does she hit the deer? Give support to your explanation.B) How long (how much time) does it take Sarah to travel half of the stopping distance in part (a)?
Chapter 15 Solutions
Tutorials in Introductory Physics
Ch. 15.1 - Describe the motion. During which periods of time,...Ch. 15.1 - Find the object’s instantaneous velocity at each...Ch. 15.1 - For each of the following intervals, find the...Ch. 15.1 - In which of the cased from part c, if any, is the...Ch. 15.1 - In the interval from t=0s to t=6s , does the...Ch. 15.1 - In the small box on the graph above is a portion...Ch. 15.1 - Next, we expand the section of the previous graph...Ch. 15.1 - All three graphs are representations of the same...Ch. 15.1 - Suppose that the object is speeding up. Which of...Ch. 15.1 - Suppose that the object is slowing down. Which of...
Ch. 15.1 - Describe how you could use these devices to...Ch. 15.1 - Describe how you could use these devices to...Ch. 15.2 - In each of the following exercises, a motion will...Ch. 15.2 - In each of the following exercises, a motion will...Ch. 15.2 - In each of the following exercises, a motion will...Ch. 15.2 - In each of the following exercises, a motion will...Ch. 15.2 - In each of the following exercises, a motion will...Ch. 15.2 - In each of the following exercises, a motion will...Ch. 15.2 - In each of the following exercises, a motion will...Ch. 15.2 - In each of the following exercises, a motion will...Ch. 15.2 - There are several answers for most of the...Ch. 15.2 - There are several answers for most of the...Ch. 15.2 - There are several answers for most of the...Ch. 15.3 - A ball rolls up, then down an incline. Sketch an...Ch. 15.3 - Sketch x versus t, v versus t, and a versus t...Ch. 15.3 - Sketch x versus t, v versus t, and a versus t...Ch. 15.3 - Sketch x versus t, v versus t, and a versus t...Ch. 15.3 - Describe the motion of an object: For which the...Ch. 15.3 - Describe the motion of an object: b. For which the...Ch. 15.3 - Describe the motion of an object: c. For which the...Ch. 15.3 - Describe the motion of an object: d. For which the...Ch. 15.3 - Two carts roll toward each other on a level table....Ch. 15.3 - Two carts roll toward each other on a level table....Ch. 15.3 - Two carts roll toward each other on a level table....Ch. 15.3 - In this problem, a Cart moves in various ways on a...Ch. 15.3 - In this problem, a Cart moves in various ways on a...Ch. 15.3 - In this problem, a Cart moves in various ways on a...Ch. 15.3 - Carts A and B move along a horizontal track. The...Ch. 15.3 - Carts A and B move along a horizontal track. The...Ch. 15.3 - Carts A and B move along a horizontal track. The...Ch. 15.3 - Carts A and B move along a horizontal track. The...Ch. 15.3 - Two cars, C and D, travel in the same direction on...Ch. 15.3 - Two cars, P and Q, travel in the same direction on...Ch. 15.3 - Two cars, P and Q, travel in the same direction on...Ch. 15.4 - Prob. 1aTHCh. 15.4 - Prob. 1bTHCh. 15.4 - Describe how you would determine the acceleration...Ch. 15.4 - Copy vG and vH (placed “tailtotail”) in the space...Ch. 15.4 - Generalize your results above and from tutorial to...Ch. 15.4 - For each instant, state whether the object is...Ch. 15.4 - The diagram at right illustrates how the...Ch. 15.4 - For each of the instants 14, compare your...Ch. 15.4 - Choose a point about 1/8th of the way around the...Ch. 15.4 - Prob. 3bTHCh. 15.4 - How would you characterize the direction of v as...Ch. 15.4 - Each of the following statements in incorrect....Ch. 15.4 - On the diagram at right, draw vectors that...Ch. 15.4 - On the diagram at right, draw vectors that...Ch. 15.4 - Draw arrows on the diagram at points AG to...Ch. 15.4 - Next to each of the labeled points, state whether...Ch. 15.4 - Draw arrows on the diagram below to show the...Ch. 15.4 - On the diagram at right, draw velocity vectors for...Ch. 15.4 - On the diagram at right, draw the acceleration...Ch. 15.4 - How does the magnitude of the acceleration at E...Ch. 15.5 - Reference frame of boat B: Complete the upper...Ch. 15.5 - Reference frame of boat A: Complete the diagram at...Ch. 15.5 - Is the speed of the kayak in the frame of boat A...Ch. 15.5 - Rank the following quantities in order of...Ch. 15.5 - A third riverboat, boat C, moves downstream so as...Ch. 15.5 - Prob. 2aTHCh. 15.5 - A car, a truck, and a traffic cone are on a...Ch. 15.5 - The relationship vcar,cone=vcar,truck+vtruck,cone...Ch. 15.5 - Car P moves to the west with constant speed v0...Ch. 15.5 - Car P moves to the west with constant speed v0...Ch. 15.5 - Car P moves to the west with constant speed v0...Ch. 15.5 - Car P moves to the west with constant speed v0...Ch. 15.5 - Car P moves to the west with constant speed v0...Ch. 15.5 - A bicycle coasts up a hill while a car drives up...Ch. 15.5 - A bicycle coasts up a hill while a car drives up...Ch. 15.5 - A bicycle coasts up a hill while a car drives up...Ch. 15.5 - A bicycle coasts up a hill while a car drives up...Ch. 15.5 - A bicycle coasts up a hill while a car drives up...Ch. 15.5 - A bicycle coasts up a hill while a car drives up...
Additional Science Textbook Solutions
Find more solutions based on key concepts
55. You’re 6.0 m from one wall of the house seen in FIGURE P4.55. You want to toss a ball to your friend who i...
Physics for Scientists and Engineers: A Strategic Approach, Vol. 1 (Chs 1-21) (4th Edition)
61. (I) (a) What is the angular momentum of a 2.8-kg uniform cylindrical grinding wheel of radius 28 cm when ro...
Physics: Principles with Applications
21. You are 2.4 m from a plane mirror, and you would like to take a picture of yourself in the mirror. You need...
College Physics: A Strategic Approach (3rd Edition)
The pV-diagram of the Carnot cycle.
Sears And Zemansky's University Physics With Modern Physics
Astronomers using land-based telescopes must contend with glare from the light from moonlight for about two wee...
Conceptual Integrated Science
Centrifuges are widely used in biology and medicine to separate cells and other particles from liquid suspensio...
Essential University Physics: Volume 1 (3rd Edition)
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- Car A is heading east at 30 m/s and Car B is heading west at 22 m/s. Suddenly, as they approach each other, they see a one-way bridge ahead. They are 100 m apart when they each apply the brakes. Car A's speed decreases at 9.0 m/s each second and Car B decreases at 7.0 m/s each second. Part A Determine the braking distance of the car A. Express your answer with appropriate units. HA ZA = Value Units Submit Previous Answers Request Answer X Incorrect; Try Again; 9 attempts remaining Part B Determine the braking distance of the car B. Express your answer with appropriate units. HA Value Units IB = Submit Previous Answers Request Answerarrow_forwardChapter 02, Problem 034 GO Z Your answer is partially correct. Try again. In the figure here, a red car and a green car move toward each other in adjacent lanes and parallel to an x axis. At time t = 0, the red car is at x, = 0 and the green car is at x, = 223 m. If the red car has a constant velocity of 23.0 km/h, the cars pass each other at x = 44.8 m. On the other hand, if the red car has a constant velocity of 46.0 km/h, they pass each other at x = 76.2 m. What are (a) the initial velocity and (b) the (constant) acceleration of the green car? Include the signs. Green car Red car (a) Number-19.993 Unit m/s^2 (b) Number |-1.544 Unit m/s^2 Click if you would like to Show Work for this question: Open Show Workarrow_forwardAn object, starting from rest at zo = 0 m, and moving in a straight line (labelled by the coordinate z), moves according to the following acceleration versus time graph: 20 15 10 5 -6 ·10 + -16+ 20 a₂ [m/s²] Ax 1 10 Pt [s] a) Sketch a graph of the objects velocity vs. time. Label your axes clearly and identify any important points on the graph. b) What is the objects change in velocity over the first 8 seconds of its motion? c) At what times, if any, is the object moving with a constant speed? At what time(s) does the object switch its direction of motion? d) What is the objects total displacement over the first 6 seconds of its motion?arrow_forward
- A rocket accelerates upward from rest, due to the first stage, with a constant acceleration of a1 = 71 m/s2 for t1 = 26 s. The first stage then detaches and the second stage fires, providing a constant acceleration of a2 = 45 m/s2 for the time interval t2 = 119 s. 1. Enter an expression for the rocket's speed, v1, at time t1 in terms of the variables provided. 2. Enter an expression for the rocket's speed, v2, at the end of the second period of acceleration, in terms of the variables provided in the problem statement. 3. Using your expressions for speeds v1 and v2, calculate the total distance traveled, in meters, by the rocket from launch until the end of the second period of acceleration.arrow_forwardA rhinoceros is at the origin of coordinates at time t1 = 0. For the time interval from t1 to t2 = 11.0 s, the rhino's average velocity has x-component - 4.20 m/s and y-component 5.10 m/s. a. At time t2 = 11.0 s what is the x-coordinate of the rhino? b. At time t2 = 11.0 s what is the y-coordinate of the rhino? c. How far is the rhino from the origin?arrow_forwardThe figure shows a graph of the position x of two cars, C and D, as a function of time t.According to this graph, which statements about these cars must be true? (There could be more than one correct choice.) The magnitude of the acceleration of car C is less than the magnitude of the acceleration of car D. Both cars have the same acceleration. The magnitude of the acceleration of car C is greater than the magnitude of the acceleration of car D. The cars meet at time t = 10 s. At time t = 10 s, both cars have the same velocity.arrow_forward
- You ride in a boat on a river flowing at 1.7m/s(in the negative y direction). Suppose you would like the boat to move directly across the river (in the positive x direction) with a speed of 5.5m/s.What is the corresponding speed of the boat's velocity relative to the water?Express your answer to two significant figures and include appropriate units.arrow_forwardA student at the top of a building of height h throws ball A straight upward with speed ν0 and throws ball B straight downward with the same initial speed.a. Compare the balls’ accelerations, both direction and magnitude, immediately after they leave her hand. Is one acceleration larger than the other? Or are the magnitudes equal?b. Compare the final speeds of the balls as they reach the ground. Is one larger than the other? Or are they equal?arrow_forwardYou ride in a boat on a river flowing at 1.7m/s(in the negative y direction). Suppose you would like the boat to move directly across the river (in the positive x direction) with a speed of 5.5m/s.What is the corresponding direction of the boat's velocity relative to the water (i.e. from the positive x direction)?Express your answer to two significant figures and include appropriate units.arrow_forward
- Welcome Rotonda is a roundabout which is about 30 m in diameter. Coming from Quezon City to exit towards España Blvd., a rider on a bicycle increases his speed on the roundabout at a constant rate, from 15 to 25 kph over a distance of 28 m. a. Determine the magnitude of the total acceleration of the bicycle 3 s after he begins to increase his speed. Determine the magnitude of the total acceleration as he exits the roundabout. please include drawings if possible thank you!arrow_forwardA toy car can move to the right or left along a horizontal line (the positive portion of the distance axis). The positive direction is to the right. 0 + Choose the correct velocity-time graph (A - H) for each of the following questions. You may use a graph more than once or not at all. If you think that none is correct, answer choice J. A B D V e e 1 e + 0 0 0 e 0 1 0 Time Time Time Time E G H V 1 V + 0 e 0 1 0 0 None of these graphs is correct. Time Time Time Time Which velocity graph shows the car moving toward the left (toward the origin) at a steady (constant) velocity?arrow_forwardAn object’s position as a function of time is x(t) = 9 m + 1.5 m/s t– 3 m/s^2 t^2a. Calculate the object’s position, velocity, and acceleration at t = 6.2 s. At this point in time, is the object to the left or to the right of the origin? is it moving towards the left or towards the right? is the object speeding up or slowing down?b. What is the maximum positive displacement reached?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Physics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage LearningCollege PhysicsPhysicsISBN:9781285737027Author:Raymond A. Serway, Chris VuillePublisher:Cengage LearningCollege PhysicsPhysicsISBN:9781305952300Author:Raymond A. Serway, Chris VuillePublisher:Cengage Learning
- Principles of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningPhysics for Scientists and Engineers, Technology ...PhysicsISBN:9781305116399Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
Physics for Scientists and Engineers: Foundations...
Physics
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Cengage Learning
College Physics
Physics
ISBN:9781285737027
Author:Raymond A. Serway, Chris Vuille
Publisher:Cengage Learning
College Physics
Physics
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Cengage Learning
Principles of Physics: A Calculus-Based Text
Physics
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Physics for Scientists and Engineers, Technology ...
Physics
ISBN:9781305116399
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Position/Velocity/Acceleration Part 1: Definitions; Author: Professor Dave explains;https://www.youtube.com/watch?v=4dCrkp8qgLU;License: Standard YouTube License, CC-BY