A boy throws a ball with a velocity ' $\mathrm{V}_0$ ' at an angle ' $\alpha$ ' to the ground. At the same time 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

• Correct answer
  A

  $V_0 \cos \alpha$
• B

  $\mathrm{V}_0 \sin \alpha$
• C

  $\mathrm{V}_0 \tan \alpha$
• D

  $\sqrt{V_0^2 \tan \alpha}$

Solution

To cover a range $R$, the boy should run with a constant velocity of $V_0 \cos \alpha$

Hence, the correct answer is option: 'A'.