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A $0.450-$ kg hammer is moving horizontally at 7.00 $\mathrm{m} / \mathrm{s}$ when it strikes a nail and comes to rest after driving the nail 1.00 $\mathrm{cm}$ into a board. (a) Calculate the duration of the impact. (b) What was the average force exerted on the nail?

(a) $t = 2.86 \times 10 ^ { - 3 } , \mathrm { s }$(b) $F = 1.10 \mathrm { kN }$

Physics 101 Mechanics

Chapter 8

Linear Momentum and Collisions

Moment, Impulse, and Collisions

Rutgers, The State University of New Jersey

University of Michigan - Ann Arbor

University of Sheffield

University of Winnipeg

Lectures

04:16

In mathematics, a proof is…

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In mathematics, algebra is…

04:24

A 0.450-kg hammer is movin…

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Suppose you hit a steel na…

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(II) A 12-kg hammer strike…

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(II) A 12 -kg hammer strik…

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Figure $P 12.15$ shows a c…

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The collision between a ha…

01:46

Figure $\mathrm{P} 12.10$ …

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03:28

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An 8.00 kg block of steel …

A claw hammer is used to …

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A nail in a pine board sto…

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(a) Calculate the force ne…

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A 75.0-kg person is riding…

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01:38

In order to pull out the n…

is this how we're given a nasty zero work by evidence, A initial velocity of seven meters per second and a distance that nail travels into the board 17 year. You can write that as 01 years, but what have the federation of the impact? Before we could do that, we actually need to do heart. Be able to see average boards exhibit on the nail unity part beepers. So we need Thio party. You work energy there, which tells us that the work done is equal to or change a Connecticut final. Kinetic energy mourn its initial and the force before t the opposite directions. We can use an angle of 180 degrees or just negative one true friend but what we want and using the distance that he travels with nails sp 01 to determine our horse, your final velocity zero We could say our horse it's or why we are in trouble. It is so the force on the nail by number is 1402 units and that's the same ass. The force nail on hammer hammer. This 30 uses party. You go. That's for eh? And you samples So impulse is our horse. She did fine, which is our just a moment. Change in velocity some of their time. Interval. They're changing momentum, divided by force which gives us the time. Interval zero your 00.0 So you

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