(chatquestion)...The blockS of masses m and 1 are not attached, The coefficient of static friction between the blocks is u. but the surface beneath / is smooth. What is the maximum magnitude of the horizontal force F required to hold it against M: m M smooth m(M + m)g (a) m(M + m)g (b) HM M(M+ m)g (c) (d) m (M+m)g

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