Q1. A lawn roller is rolled across a lawn by a force of 128 N along the direction of the handle that is 16.1 above the horizontal. If lawn roller develops 68.4 W of power for 43 s, what distance is the roller pushed?
Q2. A 12 kg mass starts from rest and slides down an inclined plane 8.0 10-1 m long in 0.9 s. What net force is acting on the mass along the incline?