(Answered) 1 a 0750 kg hammer is moving horizontally at 900 ms when it

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1. A 0.750 kg hammer is moving horizontally at 9.00 m/s when it strikes a nail and comes to rest after driving it 1.00 cm into a board.

(a) Calculate the duration of the impact. __________s

(b) What was the average force exerted on the nail? __________N (downward)

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