A block A of mass 1 ,kg rests on a block B of mass 4 ,kg

PHYSICS · Single correct · CBSE · Physics · Laws of Motion · Laws of Motion

Problem

A block A of mass 1\,kg rests on a block B of mass 4\,kg. The coefficient of static friction between A and B is 0.50. The floor is perfectly smooth. A horizontal force F is applied to B. What is the largest value of F for which A does not slide over B? (Take g = 9.8\,m\,s−2^{-2}.) (a) 29.4 N29.4\,\text{N} (b) 24.5 N24.5\,\text{N} (c) 19.6 N19.6\,\text{N} (d) 25 N25\,\text{N}

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