A pulley fixed with celling carries a string with blocks of mass ′ m ′ and ' 3 m ' attached to its ends. The masses of string and pulley are negligible. When the system is released, its centre of mass moves with acceleration -

Question

A pulley fixed with celling carries a string with blocks of mass ′ m ′ and ' 3 m ' attached to its ends. The masses of string and pulley are negligible. When the system is released, its centre of mass moves with acceleration -, g, g / 2, g / 4, zero

MARKS App · Accepted Answer

Acceleration of each mass w.r.t. pulley = 3 m g – m g 3 m + m = g / 2 Acceleration of centre of mass = 3 m g / 2 – m g / 2 3 m + m = g / 4

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