Question

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 it hits the ground. To achieve this he should run with a velocity of
A. `u cos theta`
B. `u sin theta`
C. `u tan theta`
D. `u sec theta`

Answer 1

Correct Answer - A
Velocity of boy should be equal to the horizontal component of velocity of ball i.e., `u cos theta`.