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OpenStudy (anonymous):
what is the av. kinetic energy of an athlete during a 100m race ? The time to complete race is not given.
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OpenStudy (anonymous):
\[E _{k}=\frac{ 1 }{ 2 }mv ^{2}\] -> kinetic energy the velocity \[v=\frac{ d }{ t }\] so v=100/t and then substitute into Ek
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