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Get Full Access to Physics - 4 Edition - Chapter 6 - Problem 89
Get Full Access to Physics - 4 Edition - Chapter 6 - Problem 89

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# Solved: In a daring rescue by helicopter, two men with a

ISBN: 9780321611116 152

## Solution for problem 89 Chapter 6

Physics | 4th Edition

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Problem 89

In a daring rescue by helicopter, two men with a combined mass of 172 kg are lifted to safety. (a)If the helicopter lifts the men straight up with constant acceleration, is the tension in the rescue cable greater than, less than, or equal to the combined weight of the men? Explain. (b) Determine the tension in the cable if the men are lifted with a constant acceleration of

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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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