In Fig. 6-54, a slab of mass `m_(1) = 40` kg rests on a frictionless floor, and a block of mass `m_(2) = 12` kg rests on top of the slab. Between block and slab, the coefficient of static friction is 0.60, and the coefficient of kinetic friction is 0.40. A horizontal force `vecF` of magnitude 120 N begins to pull directly on the block, as shown. In unit-vector notation, what are the resulting accelerations of (a) the block and (b) the slab?

Explanation

`(a)veca_(b)=-(6.1m//s^(2))hati,(b)veca_(s)=-(1.2m//s)^(2)hati`