Question

A ball is dropped from a height h above ground. neglect the air resistance, its velocity (v) varies with its height above the ground as

Answer 1

Hey friend


As it is dropped under the presence of gravity thus

It's velocity will increase by 9.8m/s
In every 10 seconds.

Hope it will help you. $

Answer 2

sqrt2g(h-y) is the correct answer of this question