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 and truck have the same kinetic energy. The car and truck have the same kinetic energy. 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 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.

Answer 1

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

Kinetic energy is calculated using the formula \( KE = \frac{1}{2}mv^2 \), where \( m \) is the mass and \( v \) is the velocity. Since both the truck and the car are moving at the same speed, the kinetic energy is directly proportional to their masses. The truck, being larger and typically heavier, therefore has more kinetic energy compared to the smaller car.