Question

A 22.0 kg box is sliding down on an incline set at (44) degrees up from horizontal. The coefficient of kinetic friction between the box and the incline is (.27). Find the acceleration of the box. Give your answer in m/s2 and with 3 significant figures.

Answer 1

friction up plain: mu*mg*cosTheta
gravity down plane: mg*SinTheta

netforcedown=Mass* acceleration
gravity down-frictionup=m*a
solve for a.