Asked by Anonymous

At what speed would a 50kg person have to run to have the same kinetic energy as a 1000kg auto traveling at 100 km/h?

Help ASAP please!! Show work step by step along with the equation
Answered by Henry
V = 100km/h = 100,000m/3600s = 27.78 m/s.

KE = 0.5M*V^2 = 500 * 27.78^2 = 385,802 J. = KE of the auto.

0.5M*V^2 = 385,802.
25*V^2 = 385,802, V = ?.

Answered by Moe
124.2 m/s
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