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# A bookcase weighing 1500 N rests on a horizontal surface ISBN: 9780321675460 31

## Solution for problem 97CP Chapter 11

University Physics | 13th Edition

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Problem 97CP

A bookcase weighing 1500 N rests on a horizontal surface for which the coefficient of static fiction is ???s = 0.40. The bookcase is 1.80 m tall and 2.00 m wide; its center of gravity is at its geometrical center. The bookcase rests on four short legs that are each 0.10 m from the edge of the bookcase. A Person pulls on a rope attached to an upper corner of the bookcase. with a force that makes an angle ?? with the bookcase. (fig.). (a) If ?? = 90° so is horizontal. Show that as is increased from zero, the bookcase will start to slide before it tips, and calculate the magnitude of that will start the bookcase sliding. (b) If ?? = 0°, so is vertical, show that the bookcase will tip over rather than slide, and calculate the magnitude of that will cause the bookcase to start to tip. (c) Calculate as a function of ? the magnitude of that will cause the bookcase to start to slide and the magnitude that will cause it to start to tip. What is the smallest value that ?? can have so that the bookcase will still start to slide before it starts to tip? Figure:

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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...

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##### ISBN: 9780321675460

University Physics was written by and is associated to the ISBN: 9780321675460. This full solution covers the following key subjects: bookcase, start, tip, magnitude, slide. This expansive textbook survival guide covers 26 chapters, and 2929 solutions. Since the solution to 97CP from 11 chapter was answered, more than 345 students have viewed the full step-by-step answer. This textbook survival guide was created for the textbook: University Physics, edition: 13. The full step-by-step solution to problem: 97CP from chapter: 11 was answered by , our top Physics solution expert on 05/06/17, 06:07PM. The answer to “A bookcase weighing 1500 N rests on a horizontal surface for which the coefficient of static fiction is ???s = 0.40. The bookcase is 1.80 m tall and 2.00 m wide; its center of gravity is at its geometrical center. The bookcase rests on four short legs that are each 0.10 m from the edge of the bookcase. A Person pulls on a rope attached to an upper corner of the bookcase. with a force that makes an angle ?? with the bookcase. (fig.). (a) If ?? = 90° so is horizontal. Show that as is increased from zero, the bookcase will start to slide before it tips, and calculate the magnitude of that will start the bookcase sliding. (b) If ?? = 0°, so is vertical, show that the bookcase will tip over rather than slide, and calculate the magnitude of that will cause the bookcase to start to tip. (c) Calculate as a function of ? the magnitude of that will cause the bookcase to start to slide and the magnitude that will cause it to start to tip. What is the smallest value that ?? can have so that the bookcase will still start to slide before it starts to tip? Figure:” is broken down into a number of easy to follow steps, and 205 words.

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