A small block of mass \( m \) is placed at rest on the top of a smooth wedge of mass \( M \), wh....

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A small block of mass \( m \) is placed at rest on the top of a smooth wedge of mass \( M \), which in turn is placed at rest on a smooth horizontal surface as shown in figure. If \( h \) be the height of wedge and \( \theta \) is
\( \mathrm{P} \)
the inclination, then the distance moved by the wedge as the block reaches the foot of the wedge is
W
(1) \( \frac{M h \cot \theta}{M+m} \)
(2) \( \frac{m h \cot \theta}{M+m} \)
(3) \( \frac{M h \operatorname{cosec} \theta}{M+m} \)
(4) \( \frac{m h \operatorname{cosec} \theta}{M+m} \)


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