A block is placed on a rough plane inclined at to the horizontal
PHYSICS · Subjective · AP · Physics 1: Algebra-based · Force and Translational Dynamics · Force and Translational Dynamics
Problem
A 5kg block is placed on a rough plane inclined at 25∘ to the horizontal. The coefficients of friction are μs=0.25 and μk=0.20. A force of 40N is applied parallel to the plane, acting upward along the slope. Determine (i) whether the block moves and, if it does, (ii) the magnitude and direction of its acceleration. Take g=9.8ms−2.