A classical mechanics problem by Soon YuClassical Mechanics Level 3
A 40kg slab rests on a frictionless floor. A 10kg block rests on top of it. The coefficient of static friction between block and slab is 0.60, whereas their kinectic friction of coefficient is 0.40. If the 10kg block is pulled to left by a horizontal force of 100N, what is the acceleration of the slab?