A block mass $m$ is placed on a smooth wedge of inclination $\theta$. The whole system is accelerated…

A block mass $m$ is placed on a smooth wedge of inclination $\theta$. The whole system is accelerated horizontally so that the block does not slip on the wedge. The force exerted by the wedge on the block ( $g$ is acceleration due to gravity) will be:
  1. $m g \cos \theta$
  2. $m g \sin \theta$
  3. $m g$
  4. $\mathrm{mg} / \cos \theta$

Solution


Here $N \cos \theta=m g$
$\Rightarrow N=\frac{m g}{\cos \theta}$

Asked in: NEET 2004

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