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gtnhenbr [62]
2 years ago
10

An Olympic athlete of mass 80kg competes in a 100m race. What is the best estimate of his mean kinetic energy during the race?

Mathematics
1 answer:
kipiarov [429]2 years ago
3 0
For this question, you need to know that the average velocity of a 100m Olympic athlete is 10 m/s before you start solving the equation. The equation is K (energy in Jules) = 1/2 mv^2 (where m is the mass in kg and v the speed in meters per second). 
The correct answer is 4000J. To see how I got it, take a look at the attachment. 

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