Question
Asked Jun 10, 2019
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A 0.650 kg hammer is moving horizontally at 4.00 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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Expert Answer

Step 1

a)

Final velocity is,

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V= u at

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Step 2

Substituting the values,

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Om/s 4.00 m/s +at -4.00 m/s a =

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Step 3

Newton’s equation to find sq...

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2 v=u° +2ad

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