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A particle of mass m is projected with ...

A particle of mass m is projected with velocity u at an angle `theta` with horizontal. During the period when the particle descends from highest point to the position where its velocity vector makes an angle `theta//2` with horizontal, the work done by the gravity force is

A

`1/2"mu"^(2)tan^(2)alpha`

B

`1/2"mu"^(2)"tan"^(2)(alpha)/2`

C

`1/2"mu"^(2)cos^(2)alpha "tan"^(2)(alpha)/2`

D

`1/2"mu"^(2)"cos"^(2)(alpha)/2sin^(2)alpha`

Text Solution

Verified by Experts

The correct Answer is:
C
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