A 2.3 kg ball is held 20 m above the ground and released. How fast is It moving when it hits the ground?

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A 2.3 kg ball is held 20 m above the ground and released. How fast is

It moving when it hits the ground?

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Answer: mgh = 0.5 mv^2 solve v = square root( 2g h)

Explanation: first mass have potential energy mgh

It is converted to kinetic energy 0.5mv^2

Jdizzle answered Mar 16, 2022

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