Question

A block with mass m = 13.0 kg slides down an inclined plane of slope angle 18.7 ° with a constant velocity. It is then projected up the same plane with an initial speed 3.80 m/s. How far up the incline will the block move before coming to rest?

Answer 1

net force is zerothe sum of the forces on the object must be zero because it is moving at a constant velocity

find the component for the force of gravity perpendicular to the ramp, that will be the normal force.