A 12kg box rests on a horizontal surface with a coefficient of kinetic friction of 0.25. The 12kg box is attached to an 8kg box through a rope. (a) What is the acceleration of the system? (b) What is the tension in the rope?

A 12kg box rests on a horizontal surface with a coefficient of kinetic friction of 0.25. The 12kg box is attached to an 8kg box through a rope. (a) What is the acceleration of the system? (b) What is the tension in the rope?

Name: A 12kg box rests on a horizontal surface with a coefficient of kinetic
Uploaded: 2024-03-20T06:57:57.000Z
Channel: Bartleby
Description: A 12kg box rests on a horizontal surface with a coefficient of kinetic friction of 0.25. The 12kg box is attached to an 8kg box through a rope. (a) What is the acceleration of the system? (b) What is the tension in the rope?

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter4: The Laws Of Motion

Section: Chapter Questions

Problem 6OQ

See similar textbooks

Similar questions

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 49 kg rock climber is climbing a “chimney.” The coefficient of static friction between her shoes and the rock is 1.2; between her back and the rock is 0.80. She has reduced her push against the rock until her back and her shoes are on the verge of slipping. (a) Draw a free-body diagram of her. (b) What is the magnitude of her push against the rock? (c) What fraction of her weight is supported by the frictional force on her shoes?
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?
A 260-kg log is pulled up a ramp by means of a rope that is parallel to the surface of the ramp. The ramp is inclined at 30.0 with respect to the horizontal. The coefficient of kinetic friction between the log and the ramp is 0.870, and the log has an acceleration of 0.800 m/s2. Find the tension in the rope.
The distance between two telephone poles is d = 52.0 m. When a 0.850-kg bird lands on the telephone wire midway between the poles, the wire sags h = 0.205 m. (a) Draw a free-body diagram of the bird. (b) How much tension does the bird produce in the wire? Ignore the weight of the wire.
A 3.47 kg block is placed at one end of a wooden plank that is 9.05 m long. The plank is slowly tilted.(a) The block starts to slide when the angle reaches 70 degrees. What is the coefficient of static friction between the block and the ramp?(b) The coefficient of kinetic friction between the block and the ramp is about uR = 0.13. At what rate will the block accelerate down the plank if it is tilted at 60 degrees?
A child weighing 140 N sits at rest at the top of a playground slide that makes an angle of 25 with the horizontal.The child keeps from sliding by holding onto the sides of the slide. After letting go of the sides, the child has a constant acceleration of 0.86 m/s2 (down the slide, of course). (a) What is the coefficient of kinetic friction between the child and the slide? (b) What maximum and minimum values for the coefficient of static friction between the child and the slide are consistent with the information given here?
In an investigation a student placed a 0.85 kg cart on a table. They tie one end of a light string (assume mstring= 0kg) to the front of a cart, passes it through a pulley and then onto a 0.50 kg hanging mass. Assume there is no friction. Determine the magnitude of the acceleration of the cart. Determine the magnitude of the tension.
A cord passing over a pulley connects two masses, as shown, where m1 = 3.60 kg and m2 = 7.20 kg. The system accelerates with a magnitude of 1.26 m/s2. The coefficient of kinetic friction between the masses and the incline is the same for both masses. Assume the pulley is frictionless, and the cord is massless. (a) What is the coefficient of kinetic friction? (b) What is the tension (in N) in the cord?
let the mass of the block be 8.5 kg and the angle be 30. Find (a) the tension in the cord and (b) the normal force acting on the block. (c) If the cord is cut, find the magnitude of the resulting acceleration of the block.
Two packing crates of masses m, = 10.0 kg and m, = 7.10 kg are connected by a light string that passes over a frictionless pulley as in the figure below. The 7.10-kg crate lies on a smooth incline of angle 41.0°. Find the following. (a) the acceleration of the 7.10-kg crate m/s? (up the incline) (b) the tension in the string N
Karev is lowering two boxes, one on top of the other, down the ramp, as shown in the figure, by pulling on a rope parallel to the surface of the ramp. Both boxes move together at a constant speed of 15 cm/s. The coefficient of kinetic friction between the ramp and the lower box is 0.444, and the coefficient of static friction between the two boxes is 0.800. (b) What are the magnitude of the friction force on the upper box?