Question

Which object has the greatest kinetic energy?

1. A green car with a mass of 500kg moving at 21 m/s
2. A blue car with mass of 500 kg moving at 30 m/s
3. A red car mass of 500 kg moving at 3 m/s
4. A yellow car with a mass of 500 kg moving at 12 m/s

Answer 1

The object with the greatest kinetic energy is the blue car with a mass of 500 kg moving at 30 m/s.