A racehorse is running at 42 miles per hour, equivalent to 18.8 meters per second. The horse and its jockey have a combined mass of 512 kilograms. How much kinetic energy do they have?

Question

A racehorse is running at 42 miles per hour, equivalent to 18.8 meters per second. The horse and its jockey have a combined mass of 512 kilograms. How much kinetic energy do they have?
KE = _mu
(1 point)

GPT 3.5 · Answer

To calculate the kinetic energy of the horse and its jockey, we can use the formula:

KE = 1/2 * mass * velocity^2

Plugging in the values:
KE = 1/2 * 512 kg * (18.8 m/s)^2
KE = 1/2 * 512 kg * 353.44 m^2/s^2
KE = 256 kg * 353.44 m^2/s^2
KE = 90,470.4 Joules

Therefore, the horse and its jockey have approximately 90,470.4 Joules of kinetic energy.