# h6 - luzon(jrl2375 HW6 Liu(80440 1 This print-out should...

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Unformatted text preview: luzon (jrl2375) HW6 Liu (80440) 1 This print-out should have 15 questions. Multiple-choice questions may continue on the next column or page find all choices before answering. This assignment is due at 9:00PM, Monday, Oct.5,2009 001 10.0 points A 1 . 51 10 3 kg car rounds a circular turn of radius 19.6 m. The acceleration of gravity is 9 . 81 m / s 2 . If the road is flat and the coefficient of static friction between the tires and the road is 0.98, how fast can the car go without skidding? Answer in units of m / s. 002 (part 1 of 3) 10.0 points A 13668 N car traveling at 50.5 km/h rounds a curve of radius 1 . 77 10 2 m. The acceleration of gravity is 9 . 81 m / s 2 . a) Find the centripetal acceleration of the car. Answer in units of m / s 2 . 003 (part 2 of 3) 10.0 points b) Find the force that maintains circular mo- tion. Answer in units of N. 004 (part 3 of 3) 10.0 points c) Find the minimum coefficient of static fric- tion between the tires and the road that will allow the car to round the curve safely. 005 10.0 points A train, traveling at 69 mi / h, rounds a hor- izontal curve of 320 ft radius. A passenger standing in the lounge notes that she must lean inward to keep from falling. Let an an-lean inward to keep from falling....
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h6 - luzon(jrl2375 HW6 Liu(80440 1 This print-out should...

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