What is the difference between static friction and kinetic

Reference no: EM13761323

What is the difference between static friction and kinetic friction?
Which one is usually greater? Give an example.
A block is resting on a track. The coefficient of static friction between the block and the track is k. You are slowly lifting one end of the track until the block starts sliding. What is the angle between the track and the ground when it happens? Include derivation.

Reference no: EM13761323

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