A stone is dropped from rest from the top of a well and hits the water surface after…

PHYSICS · Subjective · CBSE · Physics · Gravitation · Gravitation

Problem

A stone is dropped from rest from the top of a well and hits the water surface after

20\,\text{m}

of fall. Take

g = 9.8\,\text{m s}^{-2}

. Calculate the time taken by the stone to reach the water.