Question

A body is falling with velocity 1 m/* at a height 3 m from the ground. The speed at height 2 m from the ground will be:

Answer 1

Here initial velocity u=1m/*

Final velocity v=?

Acceleration due to gravity g=9.8m/*^2

Fall of height h =1m

So v^=u^2+2gh

=>v^2=1^2+2×9.8*1=20.6

=>v= √20.6=4.54 m{*