Question

A boy with a mask of 20 is running at 3 m/s what is his kinetic energy

Answer 1

Important Formulas:

`KE=.5mv^2`

Kinetic energy(measured in joules) = .5 * mass(measured in kg) * velocity(measured in m/s)^2

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Given:

`m=20kg`

`v=3m/s`

`KE=?`

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Finding kinetic energy:

`KE=.5mv^2`

`KE=.5(20)(3)^2`

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`\fbox{KE = 90 Joules}`