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A body is projected at an angle 30^(@) w...

A body is projected at an angle `30^(@)` with a kinetic energy of 80J. The ratio of its potential to kinetic energies at half the maximum height is

A

`1 : 1`

B

`1 : 3`

C

`1 : 5`

D

`1 : 7`

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The correct Answer is:
D
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