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

A block of mass m is placed on a smooth wedge of incination `theta`. The whole system s acelerated horizontally so tht the block does not slip on the wedge. The force exerted by the wedge on the block has a magnitude

A

mg

B

`(mg)/(costheta)`

C

`mgcostheta`

D

`mgsintheta`

Text Solution

Verified by Experts

The correct Answer is:
B
As in problem 36, `N=(mg)/(costheta)`
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CP SINGH-NEWTONS LAWS OF MOTION-EXERCISES
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  9. A man weighs 80kg . He stands on a weighing scale in a lift which is m...

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  10. A person is standing in an elevator. In which situation he finds his w...

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  11. The force exerted by the floor of an elevator on the foot of a person ...

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  16. In the previous problem, the height to which the lift takes the passen...

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  17. An empty plastic box of mass m is found to accelerate up at the rate o...

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  18. A balloon carring some sand is moving down with a constant acceleratio...

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  19. Two particles each of mass m are connected by a light string of length...

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  20. A force vecF=vecvxxvecA is exerted on a particle in addition to the fo...

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