Solve the following problems. Show solutions and answers on the space provided. 1. A box weighing 450 N is pulled along a level floor at constant speed by a rope that makes an angle of 30° with the floor as shown in the figure. If the force on the rope is 260 N, find: 30° a) the components of the force parallel and perpendicular to the floor; b) the normal force; c) the value of kinetic friction; and

Solve the following problems. Show solutions and answers on the space provided. 1. A box weighing 450 N is pulled along a level floor at constant speed by a rope that makes an angle of 30° with the floor as shown in the figure. If the force on the rope is 260 N, find: 30° a) the components of the force parallel and perpendicular to the floor; b) the normal force; c) the value of kinetic friction; and

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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the problem, explain in words as much as you do know. 12. The inclined plane shown is tilted at an angle a = 20° with respect to the horizontal. Mass m, = 25 kg and m2 = 10 kg. A. If mass m2 is moving downward and the tension in the rope connecting the masses has magnitude 140 N, what is the coefficient of kinetic friction ug between mass m, and the ramp? B. If mass m, is moving down the ramp when the rope connecting the masses is cut, what is the acceleration of mass m, after the rope goes slack? Is the mass slowing down or speeding up? Assume that uy has the same value you calculated in part A. If you weren't able to solve part A, use uy = 0.5 to solve part B. 140N m2
Two masses B and C are connected with a string passing over a friction less pully, assuming the coefficient of friction between the table and block is μ=0.4 , and the acceleration of gravity g=9.81 m/s2. Solve the following questions (show all the steps of your calculations): A. Draw the free body diagram of the two masses.B. Find an expression of the acceleration of the two masses in terms of ?? and ??.C. Determine the tension in the rope in terms of ?? and ??.D. If ??= ʎ kg, ?? = (ʎ-5) kg, determine the acceleration of two blocks and the tension in the rope.(ʎ= the final two numbers of your ID +10, and, gravitational acceleration, g = 9.81 m/s2).
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Directions: Solve the following problem about friction and tension. Use GRESA method. note: please thoroughly explain your answer and do not forget to follow the GRESA (Given, Required, Equation, Solution, Answer)! thank you Problem: A pot with a plant is hung from wires – 40o from the left, 30o from the right. What is the tension in each wire if the pot and the plant have a combined weight of 30 N? Ignore the weight of the wire.
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An exporter arrived with his goods at the Panama Canal; he was informed by the official manning the canal that the vessel carrying his goods would be towed along the canal. The rope that is used to tow the barge is inclined at 20⁰at the direction of the canal. The tension in the rope is 200N. i.Sketch the set-up narrated above. ii.Show the steps that are taken to determine the values of the rectangular components of the tension, one component being in the direction of the canal
The previous step focused on friction for horizontal surfaces. As we discussed above, angled surfaces like the wedge below have different considerations. FN = mg cos(0) F₁ = mg F₁ = ? F₁ = ? Fy=mg cos(0) Specifically, we have the following considerations. 1. The normal force is not equal to mg. 2. There is a force acting along the angle of the wedge due to gravity. What is the coefficient of static friction ? Fx = mg sin(0) Let's consider the implications of this type of problem with the following examples. For all of the examples, the box has a mass of 25 kg. Imagine the box is on a surface that allows you to adjust the incline angle, 0. You find the maximum angle where the box remains stationary. That is, at any higher angle, and the box begins to slide. The static friction force at this maximum angle is 150 N. What is the angle 0 (in degrees)? Now you raise the incline to an angle of 60° greater than the angle of maximum static friction found above. At this angle, the box slides…