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A mass string going over a clamped pulle...

A mass string going over a clamped pulley of mass m supports a block of mass M as shown in the figure. The force on the pulley by the clamp is given

A

`sqrt(2)Mg`

B

`sqrt(2)mg`

C

`gsqrt((M+m)^(2)+m^(2))`

D

`gsqrt((M+m)^(2)+M^(2))`

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