A ball rolls down a ramp for 15 seconds. If the initial velocity of the ball was 1.0 m/sec and the final velocity was 7 m/sec, what was the acceleration of the ball ?

Question

A ball rolls down a ramp for 15 seconds. If the initial velocity of the ball was 1.0 m/sec and the

            final velocity was 7 m/sec, what was the acceleration of the ball ?

Answer 1

a = (v₂ - v₁) / t

v₁ = 1.0 m/s

v₂ = 7.0 m/s

t = 15 s

Plug in the numbers and get a in m/s².