Question

A ball is dropped from a height of 122.5 m , how long it take the ball to reach the ground if acceleration is 9.8m/s2​

Answer 1

Answer:

the needed time maybe 5s

Explanation:

we know that h= it+1/2 at^2

;122.5=0×t+1/2×9.8t^2

;122.5=4.9t^2

;t is maybe 5s