What is the coefficient of kinetic friction between blocks

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Reference no: EM13339189

A block of wood of mass 1.9 kg is placed on a horizontal table and attached by a massless rope of length 31 cm to a vertical axis that passes through the table. The rope is initially swung around the axis, causing the wood to have a tangential velocity of 4.0 m/s. After one revolution the wood is observed to have a speed of only 2.1 m/s.

a) How much work has friction done on the block of wood during the first revolution?

b) What is the coefficient of kinetic friction between the block of wood and the table?

c) How many revolutions does the block of wood make before stopping?

Reference no: EM13339189

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