Question

A particle is projected horizontally with a speed of
20
5 m/s, from some height at t = 0. At what time
will its velocity make 60° angle with the initial velocity
20 m/s
(1) 1 sec
(2) 2 sec
(3) 1.5 sec
(4) 2.5 sec​

Answer 1

sorry I'm unable to get the data clearly but the method i hv followed to solve is correct.

Explanation:

plz follow this process with the exact data u have. you'll get the result