A pulley fixed with ceiling 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 ceiling 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 5, g 4, zero

MARKS App · Accepted Answer

The magnitude of the acceleration of each mass with respect to the pulley a = 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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