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A block A of 10 kg rests on a rouch, hor...

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 over frictionless 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)`

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The correct Answer is:
(a) `15kg` (b) `2 ms^(-2)`
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NN GHOSH-FRICTION, WORK POWER AND ENERGY-Exercises (B)
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