Question

A stone is dropped from a height of 80 m. Find

the time taken by stone to cover this distance

and velocity with which it hit the ground.​

Answer 1

Answer:

time is 4 seconds velocity is 40m/s

Explanation:

from 2nd equation of motion

1/2gt^2= 80

5t^2 =80

t^2=16

t=4

from 1st equation

v=gt

v= 10*4=40 m/s