Save guides, add subjects and pick up where you left off with your BBC account. estimate how the stopping distance for a vehicle varies with different speeds calculate the work done in bringing a ...

Renowned Formula 1 journalist Peter Windsor believes Lewis Hamilton is no longer braking as used to in the past. Hamilton’s ...

Longer reaction times increase the thinking distance when stopping from a given speed. There are different ways to measure reaction times. One simple method involves dropping a ruler between ...