3 years ago

How do you work out velocity using kinetic energy?

1 answer:

6 0

You just use a bit of algebra. Kinetic energy is KE = (1/2) (mass) (speed squared). Multiply each side by (2/mass) and you have 2KE/mass=speed-squared. The square root of both sides then gives you the speed in terms of the kinetic energy.

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Serhud [2]

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3 years ago

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A sprinter with a mass of 80 kg accelerates from 0 m/s to 9 m/s in 3 s. What is the runner's acceleration?

sertanlavr [38]

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