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For a given velocity, a projectile has t...

For a given velocity, a projectile has the same range R for two angles of projection. If ` t _ 1 and t _ 2 ` are the times of flight in the two cases then:

A

`t _(1) t_(2) alpha R^(2)`

B

`t _(1) t_(2) alpha R`

C

`t _(1)t_(2) alpha (1)/(R )`

D

`t _(1) t_(2) alpha ( 1)/(R ^(2))`

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The correct Answer is:
D
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