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Question: A particle of mass m is projected at an angle a to the horizontal with an initial velocity v<sub>0</...

A particle of mass m is projected at an angle a to the horizontal with an initial velocity v0. The work done by gravity during the time it reaches its highest point is –

A

u2 sin2a

B

C

D

–

Answer

–

Explanation

Solution

W = – mgH = – mg

= – mu2sin⁡2α2\frac { m u ^ { 2 } \sin ^ { 2 } \alpha } { 2 }