Mathematics, 05.05.2020 01:48, ErikaS7494

The kinetic energy K (in joules) of a falling book is represented by K=v squared/4, where v is the speed of the book (in meters pr second). How fast is the book traveling when the kinetic energy is 9 joules?

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The kinetic energy K (in joules) of a falling book is represented by K=v squared/4, where v is the s...