Flying Circus of Physics Brake or turn? The figure depicts an overhead view of a car's path as the car travels toward a wall. Assume that the driver begins to brake the car when the distance to the wall is d=109 m, and take the car's mass as m=1430 kg, its initial speed as v0=39.0 m/s, and the coefficient of static friction as μS=0.500. Assume that the car's weight is distributed evenly on the four wheels, even during braking. (a) What magnitude of frictional force is needed (between tires and road) to stop the car just as it reaches the wall? (b) What is the maximum possible static friction fS, max? (c) If the coefficient of kinetic friction between the (sliding) tires and the road is μk=0.410, at what speed will the car hit the wall? To avoid the crash, a driver could elect to turn the car so that it just barely misses the wall, as shown in the figure. (d) What magnitude of frictional force would be required to keep the car in a circular path of radius d and at the given speed v0? (a) Number Units (b) Number Units (c) Number Units (d) Number i Units Flying Circus of PhysicsBrake or turn? The figure depicts an overhead view of a car's path as the car travels toward a wall. Assume that the driverbegins to brake the car when the distance to the wall is d = 109 m, and take the car's mass as m = 1430 kg, its initialspeed as vo = 39.0 m/s, and the coefficient of static friction as μ = 0.500. Assume that the car's weight is distributedevenly on the four wheels, even during braking. (a) What magnitude of frictional force is needed (between tires androad) to stop the car just as it reaches the wall? (b) What is the maximum possible static friction fs, max? (c) If thecoefficient of kinetic friction between the (sliding) tires and the road is uk = 0.410, at what speed will the car hit thewall? To avoid the crash, a driver could elect to turn the car so that it just barely misses the wall, as shown in the figure.(d) What magnitude of frictional force would be required to keep the car in a circular path of radius d and at the givenspeed vo?(a) Numberi(b) Number i(c) Number i(d) Number iCar pathUnitsUnitsUnitsUnitsWall

Name: Flying Circus of Physics Brake or turn? The figure depicts an overhead
Uploaded: 2024-03-20T06:57:57.000Z
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Description: Flying Circus of Physics Brake or turn? The figure depicts an overhead view of a car's path as the car travels toward a wall. Assume that the driver begins to brake the car when the distance to the wall is d=109 m, and take the car's mass as m=1430 k

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Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter5: Displacement And Force In Two Dimensions

Section: Chapter Questions

Problem 8STP

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Flying Circus of Physics Brake or turn? The figure depicts an overhead view of a car's path as the car travels toward a wall. Assume that the driver begins to brake the car when the distance to the wall is d=109 m, and take the car's mass as m=1430 kg, its initial speed as v0=39.0 m/s, and the coefficient of static friction as μS=0.500. Assume that the car's weight is distributed evenly on the four wheels, even during braking. (a) What magnitude of frictional force is needed (between tires and road) to stop the car just as it reaches the wall? (b) What is the maximum possible static friction fS, max? (c) If the coefficient of kinetic friction between the (sliding) tires and the road is μk=0.410, at what speed will the car hit the wall? To avoid the crash, a driver could elect to turn the car so that it just barely misses the wall, as shown in the figure. (d) What magnitude of frictional force would be required to keep the car in a circular path of radius d and at the given speed v0? (a) Number Units (b) Number Units (c) Number Units (d) Number i Units

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