# physics

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A physics book of unknown mass is dropped 5.00 m. What speed does the book have just before it hits the ground? Assume that air resistance is negligible

• physics -

Vf^2 = Vo^2 + 2g*d,
Vf^2 = 0 + 19.6*5 = 98,
Vf = 9.90 m/s.

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