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Solved: Two students perform an experiment with a train

Physics | 4th Edition | ISBN: 9780321611116 | Authors: James S. Walker ISBN: 9780321611116 152

Solution for problem 65 Chapter 3

Physics | 4th Edition

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Physics | 4th Edition | ISBN: 9780321611116 | Authors: James S. Walker

Physics | 4th Edition

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Problem 65

Two students perform an experiment with a train and a ball. Michelle rides on a atcar pulled at 8.35 m/s by a train on a straight, horizontal track; Gary stands at rest on the ground near the tracks. When Michelle throws the ball with an initial angle of 65.0 above the horizontal, from her point of view, Gary sees the ball rise straight up and back down above a xed point on the ground. (a)Did Michelle throw the ball toward the front of the train or toward the rear of the train? Explain. (b)What was the initial speed of Michelles throw? (c)What was the initial speed of the ball as seen by Gary?

Step-by-Step Solution:
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• KeyPoints o UnitofforceandmagnitudeismeasuredinNewtons o Direction=+or- o ObjectofInterest:theobjectbeinganalyzed o Makesuretoaskyourself,“Isitfalling” o NetForce:thesumofforces o Equilibrium:netforce=0 o System:objectofinterestandobjectexertingforcesonit o Contactforce:theforcewheretwoobjectsmeet o Forcediagrams:representforcesexertedonobjectofinterest • ForceDiagrams 1. Useadotforobjectofinterest. F(HAND) 2. Labelobjectofinterest.(PoolBall) 3. Listforcesthatotherobjectsexert

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Chapter 3, Problem 65 is Solved
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Textbook: Physics
Edition: 4
Author: James S. Walker
ISBN: 9780321611116

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Solved: Two students perform an experiment with a train