All Problems

Laws of Conservation

Problem 1.134

A body of mass mm is pushed with the initial velocity v0v_{0} up an inclined plane set at an angle α\alpha to the horizontal. The friction coefficient is equal to kk. What distance will the body cover before it stops and what work do the friction forces perform over this distance?

Reveal Answer
s=v02/2g(sinα+kcosα),A=mv02k/2(k+tanα)s=v_{0}^{2} / 2 g(\sin \alpha+k \cos \alpha), A=-m v_{0}^{2} k / 2(k+\tan \alpha)