Question

I will give all my points For who ever answers this

A ball rolls down a ramp. starting from rest. After 4.9 seconds, its velocity is
7 m/s. What is the acceleration of the ball?

Answer 1

Answer:

1.43 m/s/s

Explanation:

$a= \frac{vf-vi}{t}$

vi=0m/s

Vf=7m/s

t=4.9

$7/4.9=1.4285714285714284$

or 1.43 m/s/s