Question

A particle is projected upwards with velocity 100 m/s at an angle 60° with vertical. Find the time after which it moves perpendicular to initial position

Answer 1

@gurudhillon99 - First note down the given conditions. You are given with

Initial Velocity (u) = 100 m/s
Angle of Projection \(\left( \theta \right) \) = 60 degrees (with vertical)

Now, can you first try to draw a diagram in order to visualize it?