Which one has more kinetic energy?
(1 point)
• 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 more kinetic energy
because it has a greater mass.
The car and truck have the same
kinetic energy.
3 answers
The correct answer 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 \( KE \) is kinetic energy, \( m \) is mass, and \( v \) is velocity. Since both the truck and the car are moving at the same speed, the one with the greater mass (the truck) will have more kinetic energy.
The correct answer is: The truck has more kinetic energy because it has a greater mass.
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