A disc of mass slides from rest down an inclined plane at an angle of to the horizontal
PHYSICS · Subjective · AP · Physics 1: Algebra-based · Force and Translational Dynamics · Force and Translational Dynamics
Problem
A disc of mass 50 g slides from rest down an inclined plane at an angle of 30∘ to the horizontal. Having traversed a distance of 50 cm along the horizontal plane, the disc stops. Find the work performed by the friction forces over the whole distance, assuming a friction coefficient of 0.15 for both the inclined and horizontal planes. Take g=10 m/s2.