MCQ
A boy throws a ball with a velocity $u$ at an angle $\theta$ with the horizontal. At the same instant he starts running with uniform velocity to catch the ball before if hits the ground. To achieve this he should run with a velocity of
  • $u \cos \theta$
  • B
    $u \sin \theta$
  • C
    $u \tan \theta$
  • D
    $u \sec \theta$

Answer

Correct option: A.
$u \cos \theta$
a
(a)

Velocity of boy should be equal to the horizontal component of velocity of ball.

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