To compare the kinetic energy of the dump truck, sports car, and bicycle, we can use the formula for kinetic energy, which is:
\[ KE = \frac{1}{2} mv^2 \]
where \( KE \) is kinetic energy, \( m \) is mass, and \( v \) is velocity.
Since the problem states that all three vehicles are traveling at the same velocity, their kinetic energy depends solely on their masses.
- The dump truck has the greatest mass, so it will have the most kinetic energy.
- The sports car has a smaller mass than the dump truck but larger than the bicycle, so it will have moderate kinetic energy.
- The bicycle has the least mass, so it will have the least kinetic energy.
Based on this information, the correct statement would be:
The sports car has the most kinetic energy.
However, you could argue that the dump truck actually has the highest kinetic energy given its typically much larger mass compared to both the sports car and the bicycle. Therefore, based on the typical characteristics of these vehicles:
The dump truck has the most kinetic energy.
This suggests that more information would be needed to definitively compare their kinetic energies without knowing their specific masses. Therefore, the most accurate answer based on the provided options would be:
More information is needed to compare their kinetic energy.
1 answer