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posted by aritro on Tuesday, February 5, 2013 at 6:59am.

A coin of mass 3 g slides horizontally on the surface of a table. The frictional force exerted on the penny is 0.0147 N. What is the coefficient of friction between the table and the penny?

0.0147=Fn(µk)= (3kg)(9.8m/s^2)µk, Solve for µk

0.0147 = 0.003*g*(µk) µk = 0.50 Devron forgot to convert mass to kg.

Read it wrong. Thought mass was already given in Kg

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