A smooth block of mass \( m \) is held stationary on a smooth wedge of mass \( M \) and inclinat...

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A smooth block of mass \( m \) is held stationary on a smooth wedge of mass \( M \) and inclination \( \theta \) as shown in figure. If the system is released from rest, then the normal reaction between the block and the wedge is
(a) \( m g \cos \theta \)
(b) Less than \( m g \cos \theta \)
(c) Greater than \( m g \cos \theta \)
(d) May be less or greater than \( m g \cos \theta \) depending upon whether \( M \) is less or greater than \( m \)
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