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A string exerts a tension force on a block (mass m) horizontally. The horizontal surface underneath the block is rough with coefficient μs.


(a) If the tension in the horizontal string is T0, then what is the magnitude of the static friction force? Your answer will be in terms of some or all of the given variables. (Hint: The answer is not μsmg.)

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Related textbook solutions

Physics: Principles with Applications
7th Edition, 2013
Giancoli
ISBN: 9780321625922

Related questions

A block of mass m lies on a horizontal table. The coefficient of static friction between the block and the table is μs. The coefficient of kinetic friction is μk, with μk<μs.

Part A

If the block is at rest (and the only forces acting on the block are the force due to gravity and the normal force from the table), what is the magnitude of the force due to friction?

Part B

Suppose you want to move the block, but you want to push it with the least force possible to get it moving. With what force F must you be pushing the block just before the block begins to move?

Express the magnitude of F in terms of some or all the variables μs,μk, and m, as well as the acceleration due to gravity g.

Part C

Suppose you push horizontally with half the force needed to just make the block move. What is the magnitude of the friction force?

Express your answer in terms of some or all of the variables μs, μk, and m, as well as the acceleration due to gravity g.

Part D

Suppose you push horizontally with precisely enough force to make the block start to move, and you continue to apply the same amount of force even after it starts moving. Find the acceleration a of the block after it begins to move.

Express your answer in terms of some or all of the variables μs, μk, and m, as well as the acceleration due to gravity g.

a block of mass 5.00 kg rests on a horizontal surface where the coefficent of kinetic friction between the two is 0.200. a string attached to the block is pulled horizontally, resulting in a 2.00 m/s^2 acceleration by the block. find the tension in the string. (G=9.8 m/s^2)

Three identical blocks connected by ideal strings are beingpulled along a horizontal frictionless surface by a horizontalforce F. The magnitude of the tension in the string between blocksB and C is T = 3.00 N. Assume that each block has mass m = 0.400kg.
What is the magnitude F of the force?
What is the tension TAB in the string betweenblock A and block B?

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