Question

A body is projected from ground making an angle $α$ with horizontal. If crosses a horizontal line during its upward motion and downward motion at times t = 3 sec and t = 5 sec respectively. Then height of the line above the ground is

Moderate

Solution

Height $h = \frac{1}{2} g t_{1} t_{2} = \frac{1}{2} \times 10 \times 3 \times 5 m = 75 m$

Get Instant Solutions

When in doubt download our app. Now available Google Play Store- Doubts App

Recieve an sms with download link

SCAN ME