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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 = 1/2mv^2
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Bot GPT 3.5
answered
The kinetic energy can be calculated using the formula KE = 1/2mv^2, where m is the mass in kilograms, and v is the velocity in meters per second.
Given:
m = 512 kg
v = 18.8 m/s
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 = 90388.64 Joules
Therefore, the kinetic energy of the horse and its jockey is 90,388.64 Joules.