Change in kinetic energy = (116 N)(6.6 m)cos(30°) - (0.22)(50.0 N)(6.6 m)sin(30°)
Change in kinetic energy = 545.2 J
A 50.0 N box of clothes is pulled 6.6 m up a 30.0° ramp by a force of 116 N that points along the ramp. If the coefficient of kinetic friction between the box and the ramp is 0.22, calculate the change in the box's kinetic energy.
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