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6. While riding in an elevator, I use a program on my cell phone that measures our vertical acceleration to be 2 m/s² upwards. If my usual weight is 180 lbs, how heavy do I feel now? a.) 216 lbs b.) 180 lbs c.) 143 lbs d.) Zero: Weightless! Saffron is driving her 1500-kg car forward over level ground, currently at a speed of 20 m/s. The engine is offering a forward force of 4500 N. The coefficients of friction between the tires and road are µs = 0.8 and µz = 0.5. What acceleration should Saffron’s car be experiencing? a.) 1 m/s² a.) b.) 2 m/s² c.) 3 m/s²d.) 5 m/s² e.) 8 m/s² f.) 9.8 m/s? What normal force is being applied to Saffron's car by the road? c.) 3000N b.) a.) Zero! b.) 1500N d.) 7500N e.) 12,000N f.) 14,700N What acceleration will Saffron’'s car experience if it is also subject to 1500 N of air friction? a.) 1 m/s² c.) b.) 2 m/s? с.) 3 т/s? d.)5 m/s? e.) 8 m/s² f.) 9.8 m/s²

6. While riding in an elevator, I use a program on my cell phone that measures our vertical acceleration to be 2 m/s² upwards. If my usual weight is 180 lbs, how heavy do I feel now? a.) 216 lbs b.) 180 lbs c.) 143 lbs d.) Zero: Weightless! Saffron is driving her 1500-kg car forward over level ground, currently at a speed of 20 m/s. The engine is offering a forward force of 4500 N. The coefficients of friction between the tires and road are µs = 0.8 and µz = 0.5. What acceleration should Saffron’s car be experiencing? a.) 1 m/s² a.) b.) 2 m/s² c.) 3 m/s²d.) 5 m/s² e.) 8 m/s² f.) 9.8 m/s? What normal force is being applied to Saffron's car by the road? c.) 3000N b.) a.) Zero! b.) 1500N d.) 7500N e.) 12,000N f.) 14,700N What acceleration will Saffron’'s car experience if it is also subject to 1500 N of air friction? a.) 1 m/s² c.) b.) 2 m/s? с.) 3 т/s? d.)5 m/s? e.) 8 m/s² f.) 9.8 m/s²

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Please focus on the problem that has parts a-f. I would appreciate if you could also throw in #6, but the Saffron problem is my main focus. This is to be done using algebra based physics

### Physics Problems and Solutions #### Problem 6: While riding in an elevator, I use a program on my cell phone that measures our vertical acceleration to be 2 m/s² upwards. If my usual weight is 180 lbs, how heavy do I feel now? - a) 216 lbs - b) 180 lbs - c) 143 lbs - d) Zero: Weightless! #### Scenario: Saffron is driving her 1500-kg car forward over level ground, currently at a speed of 20 m/s. The engine is offering a forward force of 4500 N. The coefficients of friction between the tires and road are μₛ = 0.8 and μₖ = 0.5. **Questions:** a) **What acceleration should Saffron’s car be experiencing?** - a) 1 m/s² - b) 2 m/s² - c) 3 m/s² - d) 5 m/s² - e) 8 m/s² - f) 9.8 m/s² b) **What normal force is being applied to Saffron’s car by the road?** - a) Zero! - b) 15000 N - c) 3000 N - d) 7500 N - e) 12000 N - f) 14700 N c) **What acceleration will Saffron’s car experience if it is also subject to 1500 N of air friction?** - a) 1 m/s² - b) 2 m/s² - c) 3 m/s² - d) 5 m/s² - e) 8 m/s² - f) 9.8 m/s² d) **What is the maximum acceleration that Saffron’s car could experience before the tires lose their static grip along the road’s surface?** - a) 1 m/s² - b) 2 m/s² - c) 3 m/s² - d) 5 m/s² - e) 8 m/s² - f) 9.8 m/s² e) **What is the maximum speed at which Saffron’s car could negotiate a turn of radius 25 meters?** - a) Zero! - b) 5
Transcribed Image Text:### Physics Problems and Solutions #### Problem 6: While riding in an elevator, I use a program on my cell phone that measures our vertical acceleration to be 2 m/s² upwards. If my usual weight is 180 lbs, how heavy do I feel now? - a) 216 lbs - b) 180 lbs - c) 143 lbs - d) Zero: Weightless! #### Scenario: Saffron is driving her 1500-kg car forward over level ground, currently at a speed of 20 m/s. The engine is offering a forward force of 4500 N. The coefficients of friction between the tires and road are μₛ = 0.8 and μₖ = 0.5. **Questions:** a) **What acceleration should Saffron’s car be experiencing?** - a) 1 m/s² - b) 2 m/s² - c) 3 m/s² - d) 5 m/s² - e) 8 m/s² - f) 9.8 m/s² b) **What normal force is being applied to Saffron’s car by the road?** - a) Zero! - b) 15000 N - c) 3000 N - d) 7500 N - e) 12000 N - f) 14700 N c) **What acceleration will Saffron’s car experience if it is also subject to 1500 N of air friction?** - a) 1 m/s² - b) 2 m/s² - c) 3 m/s² - d) 5 m/s² - e) 8 m/s² - f) 9.8 m/s² d) **What is the maximum acceleration that Saffron’s car could experience before the tires lose their static grip along the road’s surface?** - a) 1 m/s² - b) 2 m/s² - c) 3 m/s² - d) 5 m/s² - e) 8 m/s² - f) 9.8 m/s² e) **What is the maximum speed at which Saffron’s car could negotiate a turn of radius 25 meters?** - a) Zero! - b) 5
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