Question

f the truck and the motorcycle are both going at 60 km/h which one has more kinetic energy? both truck and motorcycle have the same kinetic energy the truck has more kinetic energy cycle has more kinetic energy

Explanation:

Step1: Recall the kinetic energy formula

The formula for kinetic energy is \( KE=\frac{1}{2}mv^{2} \), where \( m \) is mass and \( v \) is velocity.

Step2: Analyze the given situation

The truck and motorcycle have the same velocity (\( v = 60\ km/h \)). But the mass of the truck (\( m_{truck} \)) is much larger than the mass of the motorcycle (\( m_{motorcycle} \)), i.e., \( m_{truck}>m_{motorcycle} \).

Step3: Compare kinetic energies

Since \( KE=\frac{1}{2}mv^{2} \) and \( v \) is the same, and \( m_{truck}>m_{motorcycle} \), then \( KE_{truck}=\frac{1}{2}m_{truck}v^{2}>\frac{1}{2}m_{motorcycle}v^{2} = KE_{motorcycle} \).

Answer:

The truck has more kinetic energy.