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 ms –1 to the bullet. At what height above the bird must he aim his gun in order to hit it (take g = 10 ms –2 )
Text Solution
Verified by ExpertsThe correct answer is:
A
Time taken by bullet to travel a horizontal distance of 100 m is given by 
In this time the bullet also moves downward due to gravity its vertical displacement 
= 20 cm
So bullet should be fired aiming 20 cm above the bird to hit it.
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