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A block of mass m is in contact with...

A block of mass m is in contact with the cart C as shown in figure -

The coefficient of static friction between the block and the cart is `mu` , The accelertion `alpha ` of the cart that will prevent the block from failing satisfies -

A

`alpha gt (mg)/(mu)`

B

`alpha gt (g)/(mu m)`

C

`alpha ge (g)/(mu)`

D

`alpha lt (g)/(mu)`

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