COLLEGE PHYSICS
2nd Edition
ISBN: 9781464196393
Author: Freedman
Publisher: MAC HIGHER
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Chapter 5, Problem 48QAP
To determine
The minimum magnitude of force required to move the crate to the right and the corresponding magnitude of the tension Tin the rope that connects the box to the wall when the crate is moved.
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A box of banana weighing 40.0 N rests on a horizontal surface. The
coefficient of static friction between the box and the surface is 0.40,
and the coefficient of kinetic friction is 0.20.
(a) If no horizontal force is applied to the box and the box is at rest,
how large is the friction force exerted on the box?
(b) What is the magnitude of the friction force if a monkey applies a
horizontal force of 6.0 N to the box and the box is initially at rest?
(c) What minimum horizontal force must the monkey apply to start the
box in motion?
(d) What minimum horizontal force must the monkey apply to keep the
box moving at constant velocity once it has been started?
(e) if the monkey applies a horizontal force of 18.0 N, what is the
magnitude of the friction force and what is the box's acceleration?
Let there be 2 blocks stacked on a table. The top block has a mass of 2.0 kg, and the bottom block has a mass of 5.0 kg. The coefficient of static friction between the two blocks is 0.40, and the coefficient of static friction between the bottom block and table is 0.10. What is the maximum horizontal force you can apply to the top block such that neither block moves?
A box of bananas weighing 40.0 N rests on a horizontal surface. The coefficient of static friction between the box and the surface is 0.40, and the coefficient of kinetic friction is 0.20. (a) If no horizontal force is applied to the box and the box is at rest, how large is the friction force exerted on it? (b) What is the magnitude of the friction force if a monkey applies a horizontal force of 6.0 N to the box and the box is initially at rest? (c) What minimum horizontal force must the monkey apply to start the box in motion? (d) What minimum horizontal force must the monkey apply to keep the box moving at constant velocity once it has been started? (e) If the monkey applies a horizontal force of 18.0 N, what is the magnitude of the friction force and what is the box’s acceleration?
Chapter 5 Solutions
COLLEGE PHYSICS
Ch. 5 - Prob. 1QAPCh. 5 - Prob. 2QAPCh. 5 - Prob. 3QAPCh. 5 - Prob. 4QAPCh. 5 - Prob. 5QAPCh. 5 - Prob. 6QAPCh. 5 - Prob. 7QAPCh. 5 - Prob. 8QAPCh. 5 - Prob. 9QAPCh. 5 - Prob. 10QAP
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- A box of bananas weighing 40.0 N rests on a horizontal surface.The coefficient of static friction between the box and the surfaceis 0.40, and the coefficient of kinetic friction is 0.20. What is the magnitude of the friction force if a monkey applies a horizontal force of 6.0 N to the box and the box is initially at rest?arrow_forwardWhat is the magnitude of the static frictional force acting on the block? A block is at rest on a rough inclined plane and is connected to an object with the same mass as shown. The rope may be considered massless; and the pulley may be considered frictionless. The coefficient of m m static friction between the block and the plane is us; and the coefficient of kinetic friction is µk. a a) mg sin 0 b) mg cos 0 (c) mg (1 – sin 0) (d) mg (1 – cos 0) ... (A a в) d b D) carrow_forwardA box of bananas weighing 40.0 N rests on a horizontal surface. The coefficient of static friction between the box and the surface is 0.40, and the coefficient of kinetic friction is 0.20. Identify the following: If no horizontal force is applied to the box and the box is at rest, how large is the friction force exerted on the box? What is the magnitude of the friction force if a monkey applies a horizontal force of 6.0 N to the box and the box is initially at rest? What minimum horizontal force must the monkey apply to start the box in motion? What minimum horizontal force must the monkey apply to keep the box moving at constant velocity once it has been started? *Choices attached in the photoarrow_forward
- A horizontal force P of 379 N is applied on the crate of weight W=870 N. Initially the crate is left motionless. Find the magnitude and direction of friction force that are applied by the flat surface on the crate. Take the value of coefficient of static friction as 0.47 and the value of coefficient of kinetic friction as 0.33. a. ) The magnitude of friction force is 322 N and it is acting in the direction b. ) The magnitude of friction force is 379 N and it is acting in the direction c. ) The magnitude of friction force is 322 N and it is acting in the direction d.) The magnitude of friction force is 379 N and it is acting in the directionarrow_forwardA block (mass = 200.00 g) is placed on an inclined plane 45 degrees from the horizontal. The coefficient of static and kinetic friction between the block and the plane are 0.54 and 0.35, respectively. What is the frictional force between the block and the plane?arrow_forwardA 50-kg box is resting on a horizontal floor. A force of 250 N directed at an angle of 30.0° below the horizontal is applied to the box. The coefficient of static friction between the box and the surface is 0.40, and the coefficient of kinetic friction is 0.30. What is the force of friction on the box?arrow_forward
- A block of mass m1 = 3.9 kg is placed on top of a block with mass m2 = 5.4 kg. A force, F = is applied to m2, at an angle 16.1 degrees above the horizontal. If the coefficient of static friction between all moving surfaces is 0.42 and the coefficient of kinetic friction is 0.32, determine the magnitude of the minimum force that will get the blocks moving.arrow_forwardA tool box of weighing 50.0 N rests on a horizontal surface. The coefficient of static friction between the box and the surface is 0.40, and the coefficient of kinetic friction is 0.20. If no horizontal force is applied to the box and the box is at rest, how large is the friction force exerted on the box?arrow_forwardThe diagram shows a block of mass m = 2.50 kg resting on a plane inclined at an angle of 0 = 30° to the horizontal. The coefficient of static friction between the block and the plane is Ustatic = 0.135, and the block is stationary but just on the point of sliding up the slope. 3 X E Fi D maximum magnitude of applied force = 3 N x' mg Fi The diagram shows the four forces acting on the block: an applied force F₁ acting up the slope, the block's weight mg, the normal reaction force N and the force of static friction, Ff. In this case, the force of static friction acts down the slope, opposing the tendency of the block to move up the slope. Find the the maximum magnitude of the applied force F₁ that can be exerted if the block is to remain stationary. Specify your answer by entering a number into the empty box below. 0 N.arrow_forward
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