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A block of mass m is placed on a smooth ...

A block of mass m is placed on a smooth wedge of inclination `theta`. The whole system is accelerated horizontally so that block does not slip on the wedge. The force exerted by the wedge on the block (`g` is acceleration due to gravity) will be

A

`m g cos theta`

B

`mg sin theta`

C

`m g`

D

`m g//cos theta`

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