Question

A car's velocity increases from rest to 14 m/s, E, in 3.5 sec. What is its acceleration

Answer 1

Acceleration = (change in speed) / (time for the change).

Acceleration = (14 m/s - 0 m/s) / (3.5 s) = 4 m/s²

Answer 2

Acceleration = (Change in velocity) / (Time taken)
So,
Acceleration =
`(14 - 0)/(3.5)`

Acceleration =
`(14)/(3.5)`

Acceleration = 4 m/s²

So, acceleration of the car is 4 m/s²