Question

when a stone is dropped from 30m height. find velocity before hiting the ground and time taken by the stone

Answer 1

Answer:velocity=24.24 m/s^W

Time taken = 2.47 s

Explanation:

Formula:v^2-u^2=2as

Time =( v-u )/a

Acceleration when freely falling down =9.8 m/s^2

Intial velocity U = 0