To determine which vehicle has the greatest kinetic energy, we can use the formula for kinetic energy (KE):
\[ KE = \frac{1}{2} mv^2 \]
where \( m \) is the mass of the vehicle and \( v \) is its velocity.
- Compact car: Velocity = 10 m/s
- Pickup truck: Velocity = 25 m/s
- Minivan: Velocity = 10 m/s
- Motorcycle: Velocity = 25 m/s
While we do not have the exact masses of each vehicle, we can make some educated assumptions:
- Typically, a pickup truck is heavier than a compact car and a minivan.
- A minivan generally has a mass somewhere between a compact car and a pickup truck, but it will likely be heavier than a motorcycle.
Given the velocities:
- The compact car and minivan are both at 10 m/s.
- The pickup truck and motorcycle are both at 25 m/s.
Now, let's consider the vehicles with the two highest velocities: the pickup truck and the motorcycle (both at 25 m/s).
Assuming the pickup truck is substantially heavier than the motorcycle, its kinetic energy will likely be much greater, even if they both travel at the same velocity.
Thus, without exact mass values, we can reasonably conclude that:
The pickup truck most likely has the greatest kinetic energy.