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Questions  

A boy throws a ball with a velocity u at an angle θ with the horizontal. At the same instant, he starts running with uniform velocity to catch the ball before it hits the ground. To achieve this, he should run with a velocity of

a
u cos θ
b
u sin θ
c
u tan θ
d
u sec θ

detailed solution

Correct option is A

Velocity of boy should be equal to the horizontal component of velocity of ball, i.e. u cos θ.

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