Question

A particle at a height h from the ground is projected with an angle 30 from the horizontal

Answer 1

The time of flight = .

So at 4 seconds the body is at the higest point.

At t=2s and t= 6 second the body is at the same height. So Vertical displacement between 2s and 6 s is zero.( Body went up and returned to the same vertical level.

So vertical average velocity for this period is zero.

Horizontal velocity during this period is constant which is equal to .

This is the average velocity between t = 2 s and t = 6 s.

Answer 2

Answer:

The time of flight = .

So at 4 seconds the body is at the higest point.

At t=2s and t= 6 second the body is at the same height. So Vertical displacement between 2s and 6 s is zero.( Body went up and returned to the same vertical level.

So vertical average velocity for this period is zero.

Horizontal velocity during this period is constant which is equal to .

This is the average velocity between t = 2 s and t = 6 s.