Question

There are four race cars on the track. Each race car and the driver have the same mass. Below are the speeds of each car.

Car A: 156 mph
Car B: 175 mph
Car C: 144 mph
Car D: 149 mph

Which car possess the greatest amount of kinetic energy.

Answer 1

KE = 1/2 m v²

Since mass is same

KE is proportional to (velocity of car)²

So Car B possesses greatest amount of KE