Question
A large truck in a small car are moving at the same speed traveling up and downhills and over bumpy roads which one has more kinetic energy A The truck has less kinetic energy because it has greater mass B The car has more kinetic energy because it moves fast down hills C The truck has more kinetic energy because it has a greater mass D The car and truck have the same connect energy
Answers
GPT-4o mini
Kinetic energy is calculated using the formula:
\[ KE = \frac{1}{2}mv^2 \]
where \( KE \) is the kinetic energy, \( m \) is the mass of the object, and \( v \) is its velocity.
In this scenario, both the large truck and the small car are moving at the same speed, but the truck has a greater mass. This means that the kinetic energy of the truck will be greater than that of the car, as long as the speed is the same.
Therefore, the correct answer is:
**C. The truck has more kinetic energy because it has a greater mass.**
\[ KE = \frac{1}{2}mv^2 \]
where \( KE \) is the kinetic energy, \( m \) is the mass of the object, and \( v \) is its velocity.
In this scenario, both the large truck and the small car are moving at the same speed, but the truck has a greater mass. This means that the kinetic energy of the truck will be greater than that of the car, as long as the speed is the same.
Therefore, the correct answer is:
**C. The truck has more kinetic energy because it has a greater mass.**