A block of mass is projected with speed up an inclined plane making an angle with the…
PHYSICS · Multi-part · AP · Physics 1: Algebra-based · Force and Translational Dynamics · Force and Translational Dynamics
Problem
A block of mass 4.2 kg is projected with speed 14 m s−1 up an inclined plane making an angle 28∘ with the horizontal. The dynamic coefficient of friction between the block and the inclined plane is 0.42, and the static coefficient is 0.55.
(a) After how much time will the block stop?
(b) What distance will the block cover?
(c) When the block stops, will it then slide down the plane, or will it stay at rest?
(d) In another experiment the same block is projected *down* the plane with the same speed as before. Will the block stop?