Question

Two bodies are projected horizontally from the top of a tower of height of 20 m with velocities ${30ms}^{-1}and60{ms}^{-1}$. The ratio of time taken by them to reach the ground is ____.

• A. $\frac{1}{2}$
• B. $\frac{2}{9}$
• C. $1$
• D. $\frac{9}{2}$

Answer 1

The correct option is C $1$

Since, both are projected in the horizontal direction. So initial component of velocity in vertical direction is zero for both and both have same acceleration in vertical direction. Thus both take equal time to reach the ground.

So, option C is correct.