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How fast does a 3000kg elephant have to go to have the same kinetic energy of a 65 kg skater traveling at 10 meters per second?
Wiki User
∙ 13y ago
Lets list out the variables, the skater has a mass of 65kg, or m1 and a velocity of 10 m/s , or v1 which gives the value for its kenetic energy k1 to be
K= .5 mv^2 = .5 (65)(10^2)= 3250 J
We set that number equal to the new equasion for the elephant
3250= .5mv^2 = .5(3000)v^2
and we solve for v getting an answer of 1.47 m/s
Wiki User
∙ 13y ago
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