Question

Ariel dropped a golf ball from her second story window. The ball starts from rest and hits the sidewalk 3.5 s later with a velocity of 14.7 m/s. Find the average acceleration of the golf ball.

Answer 1

By using the acceleration formula,

`a = (v - u)/(t)`

`a = (14.7 - 0)/(3.5)`

`a = 4.2m \: s ^( - 2)`