The at wood machine shown is suspended from a spring balance. The mass on one hanger is M, that on other is (M + m). Suppose the heavier side (right side) hanger is fastened to the top of pulley by a thread. The scale reads (2M + m) g. The thread is burned and the system accelerates. The reading of spring balance now will be –
Text Solution
Verified by ExpertsThe correct answer is:
C
F.B.D of whole system:
(2M + m) g – F s = (2 M + m) a cm
F s < (2M + m)
g 
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