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

A block of mass `m` is placed on a smooth inclined wedge ABC of inclination theta as shown in the figure. The wedge is given an acceleration `a` towards the right. The relation between a and theta for the block to remain stationary on the wedge is.

`a = g/cosec theta`

`a = g tan theta`

`a = g cos theta`

`a = g/sin theta`

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