Question

If a car's velocity increases to 30 m/s from rest in 6.0 seconds, what is the acceleration?

Answer 1

Hi there!

We can use the following equation to derive acceleration:

vf = vi + at, where:

vi = 0 m/s (starts from rest)

a = acceleration

time = time (sec)

Rewrite:

vf = at

Solve for acceleration:

vf/t = a

30/6 = 5 m/s²