A truck has a mass of 8000 kg, a car has a mass of 1000 kg and a bike has a mass of 100 kg. All the vehicles are moving on a level road at 45m/s. Which object has the highest kinetic energy?
truck
Kinetic Energy depends on mass and velocity. If two bodies move with the same velocity then the one with higher mass has more kinetic energy. Hence, here, the truck, which has a mass of 8000 kg, has the highest Kinetic Energy.