Physics

Problem

A car moving at

40\,\text{km h}^{-1}

can be brought to rest by its brakes in

8\,\text{m}

. Keeping the same braking force, the distance required to stop the car when it is moving at

80\,\text{km h}^{-1}

will be a)

24\,\text{m}

32\,\text{m}

64\,\text{m}

16\,\text{m}