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A small ball is projected up a smooth in...

A small ball is projected up a smooth inclined plane with an initial speed of `10 m//s` along the direction at `30^(@)`to the bottom edge of the slope .It returns to the edge after `2 s` . The ball is in contact with the inclied plane throughout the process. The angle of inclination `theta` is `:-`.

A

`45^(@)`

B

`53^(@)`

C

`30^(@)`

D

`37^(@)`

Text Solution

Verified by Experts

The correct Answer is:
C
`T=(2usin30^(@))/((gsintheta))=2`
`rArrtheta=30^(@)`
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