Question

A roller coaster car rapidly picks up speed as it rolls down a slope. As it starts down the slope, its speed is 4 m/s. 3 seconds later, at the bottom of the slope, its speed is 22 m/s. Find its acceleration

Answer 1

6 m/s^2

Explanation: Acceleration: the rate of change of velocity per unit of time.

a=v−u/t

a=22 m/s−4m/s3

s=6 m/s^2