Current Attempt in ProgressConsult Multiple-Concept Example 9 to explore a model for solving this problem. A person pushes on a 56-kg refrigerator with ahorizontal force of -250 N; the minus sign indicates that the force points in the -x direction. The coefficient of static friction is 0.57. (a)If the refrigerator does not move, what are the magnitude and direction of the static frictional force that the floor exerts on therefrigerator? (b) What is the magnitude of the largest pushing force that can be applied to the refrigerator before it just begins tomove? Assume g = 9.8 m/s².(a) Static frictional force(b) Magnitude of largest forceeTextbook and MediaGO TutorialSave for Later=VBull a><Attempts: 1 of 5 used8Submit AnswerDIIDA

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Answered: Consult Multiple-Concept Example 9 to…

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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A 2.60 kg block is initially at rest on a horizontal surface. A horizontal force F of magnitude 7.29 N and a vertical force P are then applied to the block (see the figure). The coefficients of friction for the block and surface are us = 0.4 and Pk = 0.25. Determine the magnitude of the frictional force acting on the block if the magnitude of P is (a)6.00 N and (b)8.00 N. (The upward pull is insufficient to move the block vertically.) (a) Number Units (b) Number Units
Emily is flying off to Paris. Unfortunately, the wheels of her luggage fell off. So, she ties a rope to it and drags it along the floor of the airport terminal. The rope makes a 30.0° angle with the horizontal. The luggage has a mass of 25.0 kg and Emily pulls on the rope with a force of 65.0 N. (a) What is the magnitude of the normal force acting on the luggage due to the floor? (b) If the coefficient of kinetic friction between the luggage and the marble floor is HK = 0.13, find the frictional force acting on the suitcase. CLAIM GATE
A man wants to move a heavy wooden crate (82 kg) across a wooden floor. However, since he is taller than the crate, he must pull it using a rope that makes an angle of 42 degrees with the horizontal. He exerts a force of 312 N as he pulls. What is the Normal Force exerted by the floor on the crate? What is the size of the Friction Force felt by the crate, if the crate moves at a constant speed in a straight line? Imagine that instead the floor is more slick, so that the crate feels a friction force half of what you calculated above. What is the crate’s acceleration?
A block is at rest on a horizontal floor. There is friction between the block and the floor. The block has a mass = 5.00 kg. A horizontal force of 13.0 Newtons is applied to the block and the block starts to move in the direction of the force. What is the coefficient of static friction?
In the figure here, a box of Cheerios (mass mc = 1.70 kg) and a box of Wheaties (mass mw = 2.60 kg) are accelerated across a horizontal surface by a horizontal force applied to the Cheerios box. The magnitude of the frictional force on the Cheerios box is 2.10 N, and the magnitude of the frictional force on the Wheaties box is 4.60 N. If the magnitude of F is 12.7 N, what is the magnitude of the force on the Wheaties box from the Cheerios box? Number i Unit
A block is pressed against a vertical wall by a force F, as the drawing shows. This force can either push the block upward at a constant velocity or allow it to slide downward at a constant velocity. The magnitude of the force is different in the two cases, while the directional angle is the same. Kinetic friction exists between the block and the wall, and the coefficient of kinetic friction is 0.260. The weight of the block is 47.0 N, and the directional angle for the force F is 0 = 48.0°. Determine the magnitude of F when the block slides (a) up the wall and (b) down the wall. (a) P = (b) P= i i P >
A woman exerts a horizontal force of 111 N on a box with a mass of 31.7 kg. HINT (a) If the box doesn't move, what's the magnitude of the static friction force (in N)? N (b) What is the minimum possible value of the coefficient of static friction between the box and the floor? (Assume the box remains stationary.)
A man exerts a horizontal force of 131 N on a crate with a mass of 36.2 kg. (a) If the crate doesn't move, what's the magnitude of the static friction force (in N)? Make a free-body diagram and apply the x-component of Newton's second law. N (b) What is the minimum possible value of the coefficient of static friction between the crate and the floor? (Assume the crate remains stationary.) Apply the relationship between static friction and the normal force.
A 2.5 kg block is initially at rest on a horizontal surface. A horizontal force F of magnitude 6.2 N and a vertical force P are then applied to the block. The coefficients of friction for the block and surface are us = 0.38 and uk = 0.22. (a) Determine the magnitude of the frictional force acting on the block if the magnitude of P is 8.0 N. (b) Determine the magnitude of the frictional force acting on the block if the magnitude of P is 10.0 N. (c) Determine the magnitude of the frictional force acting on the block if the magnitude of P is 12.0 N.
A car (m = 1760 kg) is parked on a road that rises 16° above the horizontal. What are the magnitudes of (a) the normal force and (b) the static frictional force that the ground exerts on the tires? (a) Number i Units (b) Number Units
A person pushes on a stationary 125 N box with 75 N at 30° below the horizontal. The coefficient of static friction between the box and the horizontal floor is 0.80. (a) Make a free-body diagram of the box. (b) What is the normal force on the box? (c) What is the friction force on the box? (d) What is the largest the friction force could be? (e) The person now replaces his push with a 75 N pull at 30° above the horizontal. Find the normal force on the box in this case.
A girl exerts a horizontal force of 133 N on a box with a mass of 33.2 kg. (a) If the box doesn't move, what's the magnitude of the static friction force (in N)? N (b) What is the minimum possible value of the coefficient of static friction between the box and the floor? (Assume the box remains stationary.)

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