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The escape velocity for a body projected...

The escape velocity for a body projected vertically upwards from the surface of earth is 11km/s. If the body is projected at an angle of `45^@` with the vertical, the escape velocity will be

A

`11/sqrt(2)` km/s

B

`11sqrt(2)` km/s

C

22 km/s

D

11 km/s

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The correct Answer is:
D
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