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A paricle of mass m is projected with a ...

A paricle of mass m is projected with a velocity u at angle `alpha` with the horizontal. Work done by gravity during its descent from its highest point to, the position where its velocity vector makes an angle `(alpha)/2` with the horizontal 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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