What should a graph of the position vs time look like if it shows an object moving to the left at a constant velocity?Select one:O An upwards curved parabola.O A downwards curved parabola.O A straight line with zero slope.O A straight line sloping downward (negative slope).O A straight line sloping upward (positive slope).

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Answered: What should a graph of the position vs…

College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter2: Motion In One Dimension

Section: Chapter Questions

Problem 30P: A speedboat increases its speed uniformly from vi = 20.0 m/s to Vf = 30.0 m/s in a distance of 2.00 ...

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A speedboat increases its speed uniformly from vi = 20.0 m/s to Vf = 30.0 m/s in a distance of 2.00 102 m. (a) Draw a coordinate system for this situation and label the relevant quantities, including vectors, (b) For the given information, what single equation is most appropriate for finding the acceleration? (c) Solve the equation selected in part (b) symbolically for the boats acceleration in terms of vf, vi, and x. (d) Substitute given values, obtaining that acceleration, (e) Find the time it takes the boat to travel the given distance.
What should a graph of the velocity vs time look like if it shows an object moving to the left at a constant velocity? Select one: O An upwards curved parabola. O A downwards curved parabola. O A straight line with zero slope that is below the x-axis. O A straight line sloping downward. O A straight line sloping upward. O A straight line with zero slope that is above the x-axis.
A 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?
From the top of a cliff, a person throws a stone straight downward. The initial speed of the stone just after leaving the person's hand is 8.1 m/s After 0.46 s, how far beneath the top of the cliff is the stone? (Give just the distance fallen, that is, a magnitude.) m
A BS Chemistry students in physics class are conducting a research project on projectile motion constructs a device that can launch a pingpong ball. The launching device is designed so that the ball can be launched at ground level with an initial velocity of 28 m/s at an angle of 30° to the horizontal. At what time will the ball reach its maximum height? 28 m s-1 30 ground level O 1.43 s 2.86 s O 2 s 1 S
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)?
The velocity of a particle which moves along the s-axis is given by v=8+10+/7 where t is in seconds and vis in meters per second. Evaluate the displacements, velocity v. and acceleration a when t = 5.6s. The particle is at the origins=0 when t = 0. Answers: Att = 5.6s, S= V= a= i m m/s m/s²
During a video game, a point on the screen moved 16.6 cm in the positive y direction and then 13.6 cm in the negative x direction, all in a time of 4.2s. a. What was the point's average velocity during this time? (Magnitude only) b. What was its average speed?
Can an object have a negative acceleration and be speeding up? If so, describe a possible physical situation and a corresponding coordinate system. If not, explain why not.
Suppose that a ball is thrown straight up in the air, and that a secondball is thrown straight upward two seconds after the first. It reaches thesame maximum height as the first ball, which is 6.00 m.a. What is the position of the first ball as a function of time, y1(t)?Take the initial height of the ball as y0 = 0.b. What is the position of the second ball as a function of time, y2(t)?Take the initial height of the ball as y0 = 0.c. Draw a y − t diagram of y1(t) and y2(t). Label the max heights, timeto max height for the first ball, and note the point corresponding to thetime and height of passing.d. When do the balls pass each other in the air? Assume the balls arebeing throw up adjacent to each other.e. At what height above y0 = 0 do the balls pass each other?f. Can you find the time of passing by just using the y − t diagram?
A boat can move at a constant velocity of 1.3 m/s in still water. How long will it take for the boat to move 1850 m? O 13.33 mins O 23.72 mins O 29.15 mins O 30.67 mins
Solve the following motion problems. 1. A ball is thrown vertically from a point 30 feet above the ground. (a). At what velocity must it be thrown for it to strike the ground in 2 seconds? Is the ball initially thrown vertically upward or downward? (b). What is its velocity when it strikes the ground? (c). Where is the ball one second after it was thrown initially? Is it moving upward or already on its way down? (Hint: Take the time and displacemnet at the maximum point of its flight by setting v=0.) |

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