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A string of negligible mass going over a...

A string of negligible mass going over a clamped pulley of mass M as shown in Fig. 3.14. The force on pulley by the clamb is given by

A

2 mg

B

`sqrt(2)` mg

C

`sqrt({ (M + m)^(2) + m^(2)}) ` g

D

`sqrt({ (M + m)^(2) + M^(2)}) ` g

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The correct Answer is:
b, c
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