Physics for Scientists and Engineers
6th Edition
ISBN: 9781429281843
Author: Tipler
Publisher: MAC HIGHER
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Chapter 4, Problem 78P
(a)
To determine
The acceleration of the system.
(b)
To determine
The tension in the rope as the function of position in the rope.
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Two masses m1=5.5 kg and m2=2.5 kg attached at the two ends of a string in a pulley that has friction. Given the kinetic frictional coefficient between the string and the pulley is 0.11. Calculate the acceleration of the block.
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 10.00-kg block is sliding down a ramp making an angle of 50˚ with the ground. Find (a) normal force applied by the ramp on the box, and (b) the force of friction between the block and the ramp (µk = 0.25, µs = 0.40), and (c) the acceleration of the box down the ramp.
Chapter 4 Solutions
Physics for Scientists and Engineers
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- A man pushes on a piano with mass 180 kg that it slides at constant velocity down a ramp that is inclined at 11° above the horizontal floor. Neglect any friction acting on the piano. Calculate the magnitude of the force applied by the man if he pushes (a) parallel to the inclined and (b) parallel to the floor.arrow_forwardIn the figure, two blocks are attached to each other by a massless string that is wrapped around a frictionless pulley. When the bottom 4.00-kg block is pulled to the left by the constant force P, the top 2.00-kg block slides across it to the right. Find the magnitude of the contact force acting on the bottom of the 4.00kg block if force P is about to move the block at a constant speed. Assume that the coefficient of kinetic friction between all surfaces is 0.400. 2.0 kg 4.0 kgarrow_forwardA 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?arrow_forward
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