A block A of 10 kg rests on a rouch, horizontal table and is connected to another block of mass 5 kg by a string passing overfrictionless pulley. This mass hangs vertically (a) Determinem the minimum weight of a third block C which can be placed on A to prevent it from sliding if mu_(s)=0.2 (b) The block C is suddenly lifted, then what is the acceleration of the block A ? (mu_(k) = 0.18)

A block A of 10 kg rests on a rouch, horizontal table and is connected

1.	A block A of 10 kg rests on a rouch, horizontal table and is connected to another block of mass 5 kg by a string passing overfrictionless pulley. This mass hangs vertically (a) Determinem the minimum weight of a third block C which can be placed on A to prevent it from sliding if mu_(s)=0.2 (b) The block C is suddenly lifted, then what is the acceleration of the block A ? (mu_(k) = 0.18)
Answer» ANSWER :(a) `15KG` (B) `2 MS^(-2)`