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A boy aims a gun at a bird from a point,...

A boy aims a gun at a bird from a point, at a horizontal distance of 100 m. If the gun can impart a velocity of 500 m/sec to the bullet, at what height above the bird must be aim his gun in order to hit it ?

A

400 m/s

B

200 m/s

C

800 m/s

D

256 m/s

Text Solution

Verified by Experts

The correct Answer is:
a
`v_(0) = sqrt(R ) g = sqrt(16 xx 10^(3) xx 10) = 400 ms^(-1)`
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