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Questions  

A uniform rod of length l and mass m is suspended by two vertical inextensible string as shown in the fig. The tension in the left string when right string snaps, is

a
mg/4
b
3mg/4
c
mg/2
d
mg/8

detailed solution

Correct option is A

mg - T = ma.......(1) where, a = Acceleration of centre of mass where α = Angular accelerationsolving equations (1), (2) and (3)we get,

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