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What is static friction?...

What is static friction?

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A man wants to slide down a block of mass m which is kept on a fixed inclined plane of inclination 30^(@) as shown in the figure .Initially the block is not sliding . To just start sliding the man pushed the block down the inclined with a force F . Now , the block starts accelerating. To move it downwards with conatant speed the man starts pulling the block with same force. Surface are such that ratio of maximum static friction to kinetic friction is 2 Now, answer the following questions. What is the value of mu _(s) , the coefficient of static friction?

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What is limiting friction?

State the laws of static friction.

Define the coefficient of static friction and kinetic friction.

The coefficient of static friction may be

The maximum static frictional force is

Work down by static friction on an object :

Work done by static friction on an object :

The coefficient of static friction between two surfaces depend on