Question

A ball is dropped from a height of 20 m calculate the speed of ball when it's height the ground calculate the time it takes to fall throw this height g =10m/s square

Answer 1

Answer:

time t =2s

Explanation:

given that,

u=0 m/s

h= 20 m

g=10 m/s²

t= ?

we know that,

h=ut+½gt²

t²= 2h/g. s

t²= (2*20)/10. s

t²= 4s

t=2s