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A small block of mass m rests on a smoot...

A small block of mass m rests on a smooth wedge of angle `theta`. With what horizontal accelaration a should the wedge be pulled, as shown in fig, so that the block falls freely?

A

(a)`g cos theta`

B

(b) `g sin theta`

C

(c) `g cot theta`

D

(d) `g tan theta`

Text Solution

Verified by Experts

The correct Answer is:
C
`tan theta=g/a implies a=g cot theta`
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