Question

If the ball reaches the ground in 8 seconds and the velocity of the ball before it hits the ground is 78.4. What is its acceleration?

also please explain how if you can

Answer 1

9.8 m / s^2

Step-by-step explanation:

Assuming free fall====> there is no initial downward/upward velocity

Assuming metric units 78.4 m/s

vf = a t

78.4 = a (8) shows a = 9.8 m/s^2