Physics

Problem

A racing car accelerates from rest at

4 \text{ ms}^{-2}

until it has travelled a distance of 50 m. The final speed of the car is: a.

10 \text{ ms}^{-1}

12.5 \text{ ms}^{-1}

20 \text{ ms}^{-1}

25 \text{ ms}^{-1}