Which of the following would have the most kinetic energy?
A house fly moving at a speed of 5 mph
A car driving down the highway at a speed of 80 mph
An airplane parked on the runway
so its B? @martika
To determine which object has the most kinetic energy, we need to consider the formula for kinetic energy, which is KE = 1/2 * m * v^2.
Comparing the three options, we need to look at both the mass (m) and the velocity (v).
1. A house fly moving at a speed of 5 mph: While a house fly is lightweight, its velocity is relatively low compared to the other options. So, let's calculate its kinetic energy:
KE = 1/2 * m * v^2
KE = 1/2 * (mass of the house fly) * (5^2)
2. A car driving down the highway at a speed of 80 mph: A car is significantly heavier than a house fly, and the velocity is higher:
KE = 1/2 * m * v^2
KE = 1/2 * (mass of the car) * (80^2)
3. An airplane parked on the runway: In this case, the velocity is zero, so the kinetic energy will also be zero since KE = 1/2 * m * v^2.
Comparing the calculations, we see that the car driving down the highway would have the most kinetic energy due to its higher mass and velocity.
hint:
energy which a body possesses by virtue of being in motion.