Question

A box slides down a 36° ramp with an acceleration of 1.05 m/s2. Determine the coefficient of kinetic friction between the box and the ramp.

Answer 1

First write Newton's equation of motion for the direction down the ramp.
Fnet = Weight*sin 36 - Ffriction = M a

M g sin36 - M g cos36 *Uk = M a

Cancel the M's and solve for the kinetic friction coefficient Uk.

For further help from me, show your work.

Answer 2

using this formula i got 8.42, which is not the right answer

Answer 3

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