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(I) A 0.145-kg baseball pitched at 31.0 m/s is hit on a horizontal line drive straight back at the pitcher at 46.0 m/s. If the contact time between bat and ball is $5.00 \times 10^{-3}s$, calculate the force (assumed to be constant) between the ball and bat.

2230 $\mathrm{N}$

Physics 101 Mechanics

Chapter 7

LINEAR MOMENTUM

Section 3

Collisions and Impulse

Kinetic Energy

Moment, Impulse, and Collisions

Mufsa G.

December 1, 2020

A 95 kg fullback is running at 3.0m/s

Rutgers, The State University of New Jersey

University of Michigan - Ann Arbor

University of Washington

Hope College

Lectures

04:30

In classical mechanics, im…

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In physics, the kinetic en…

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(I) A 0.145 -kg baseball p…

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(II) A 0.145 -kg baseball …

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(III) A 0.145-kg baseball …

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08:42

A 0.145 -kg baseball pitch…

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A bat strikes a 0.145 -kg …

16:12

A bat strikes a 0.145-kg b…

04:53

Force of a Baseball Swing.…

02:20

A 0.145 -kg baseball is pi…

01:56

A baseball bat contacts a …

07:02

(a) Kicking a soccer ball.…

05:33

A bat strikes a 0.145 kg b…

04:55

Infer The force exerted on…

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The 0.15 -kg baseball has …

01:44

(II) A $0.140-\mathrm{kg}$…

05:15

A baseball approaches home…

(II) A 0.140-kg baseball 3…

03:40

mmh A baseball $(m=149 \te…

04:16

A baseball with mass $0.15…

04:28

In a slow-pitch softball g…

So is this question. We have a baseball that has pitched. Who is a constant velocity at the horse in tow. Line is, it was he'd bet at another velocity if we know the contact time between bat and a ball. What is a force between the boards? A vet. So Okay, so again, it asked us to calculate forces that isso questions that we need to use a plumber. You to second floor. We have to tow f equal, still dopey over here to sleep. So this is a fun the reckoning in section one and for Miller Civil put you. But it's also the same for murders that reappears in sections. So we were talking about impulses. But anyway, so says the force and Dalton P. It's equal to here. We have the same mass. So it's the change of velocity that is bringing us the chart of the momentum. So, yes, for dear Toby, we have initial velocity. We have this Final velocity is opposite direction. So there is an active side here, and from that we can find out what is the church of velocity. So we plug these numbers is welcomed by program times. Um So you initial minus final. Some of its class 46 meters per second right and dusty is 0.5 2nd since gives us a total number of 20 to 30 end program meter per second screw, which is Newton. So it's about 2,000 mutant. So invisibles. So this is the magnitude of the force is 20 to 30 Newton. What is the direction of it? I mean, it's hit it. It was hit on the street. Light isn't it was driven straight back, so it's towards the picture. What's going back?

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