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A projectile is thrown with velocity u m...

A projectile is thrown with velocity `u` making an angle `theta` with the horizontal. Its time of flight on the horizontal ground is 4 second. The projectile is moving at angle of `45^(@)` with the horizontal just one second after the projection. Hence the angle `theta` is (take `g=10m//s^(2)`)

A

`tan^(-1)(4)`

B

`60^(@)`

C

`53^(@)`

D

`tan^(-1)(2)`

Text Solution

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The correct Answer is:
D
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