Which statement accurately explains why the kinetic energy on the first rider is greater?

Question

First rider: 12 m/s 80 kg
Second rider: 12 m/s 60 kg

Answer 1

The kinetic energy of an object is directly proportional to its mass and the square of its velocity. In this case, both riders have the same velocity of 12 m/s, but the first rider has a greater mass of 80 kg compared to the second rider's mass of 60 kg. Therefore, the kinetic energy of the first rider is greater because the mass of the first rider is greater.