A yellow ball with a mass of 2 kg is rolling across the floor at 3 m/s. A red ball with a mass of 3 kg is rolling across the same floor at 3 m/s. Which ball has greater kinetic energy, and why?

Kinetic energy is calculated using KE = ½mv². Both balls have the same speed, 3 m/s, so the ball with greater mass has greater kinetic energy. The red ball’s mass is 3 kg compared with the yellow ball’s 2 kg, so the red ball has greater kinetic energy.

AI-written and checked against the verified answer.