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| 1. |
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? |
| Answer» SOLUTION :`(a)veca_(B)=-(6.1m//s^(2))HATI,(b)veca_(s)=-(1.2m//s)^(2)hati` | |