A large truck and a small car are moving at the same speed, traveling up and down hills, and over bumpy roads. Which one has more kinetic energy?(1 point) Responses The car has more kinetic energy because it moves fast down hills. The car has more kinetic energy because it moves fast down hills. The truck has less kinetic energy because it has greater mass. The truck has less kinetic energy because it has greater mass. The truck has more kinetic energy because it has a greater mass. The truck has more kinetic energy because it has a greater mass. The car and truck have the same kinetic energy.

Question

A large truck and a small car are moving at the same speed, traveling up and down hills, and over bumpy roads. Which one has more kinetic energy?(1 point) Responses The car has more kinetic energy because it moves fast down hills. The car has more kinetic energy because it moves fast down hills. The truck has less kinetic energy because it has greater mass. The truck has less kinetic energy because it has greater mass. The truck has more kinetic energy because it has a greater mass. The truck has more kinetic energy because it has a greater mass. The car and truck have the same kinetic energy.

Answer 1

The correct response is: The truck has more kinetic energy because it has a greater mass.

Kinetic energy is given by the formula \( KE = \frac{1}{2}mv^2 \), where \( m \) is mass and \( v \) is velocity. If both vehicles are moving at the same speed, the one with greater mass (the truck, in this case) will have more kinetic energy.