College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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A car travels at a steady 37.4 m/s around a horizontal curve of radius 161 m. What is the minimum coefficient of static friction between the road and the car's tires that will allow the car to travel at this speed without sliding?
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- A crate of eggs is located in the middle of the flat bed of a pickup truck as the truck negotiates a curve in the flat road. The curve may be regarded as an arc of a circle of radius 39.8 m. If the coefficient of static friction between crate and truck is 0.650, how fast can the truck be moving without the crate sliding?vmax =arrow_forwardA race track curve has a radius of 90 m and is banked at an angle of 15°. the coefficient of static friction between the tires and the roadway is 0.4. a race car with a mass of 1200 kg rounds the curve with a maximum speed to avoid skidding. What’s the normal force on the car as it rounds the curve (exerted by road), the radial acceleration, and speed?arrow_forwardA car enters a 311-m radius horizontal curve on a rainy day when the coefficient of static friction between its tires and the road is 0.68. What is the maximum speed at which the car can travel around this curve without sliding in m/s? Answer:arrow_forward
- A crate of eggs is located in the middle of the flat bed of a pickup truck as the truck negotiates a curve in the flat road. The curve may be regarded as an arc of a circle of radius 33.8 m. If the coefficient of static friction between crate and truck is 0.610, how fast can the truck be moving without the crate sliding? Vmax= m/sarrow_forwardA bus passenger has her laptop sitting on the flat seat beside her as the bus, travelling at 10.0 m/s, goes around a turn with a radius of 25.0 m. What minimum coefficient of static friction is necessary to keep the laptop from sliding?arrow_forwardTwo banked curves have the same radius. Curve A is banked at 13.9 °, and curve B is banked at an angle of 18.1 °. A car can travel around curve A without relying on friction at a speed of 13.7 m/s. At what speed can this car travel around curve B without relying on friction?arrow_forward
- A block is placed on a turntable 43 cm from the axis of rotation. The turntable very slowly speeds up to 35.5 RPM. What is the minimum coefficient of static friction between the block and the turntable surface that would prevent the block from sliding away under these conditions?arrow_forwardIn a recent study of how mice negotiate turns, the mice ran BIO around a circular 90° turn on a track with a radius of 0.15 m. The maximum speed measured for a mouse (mass = 18.5 g) running around this turn was 1.29 m/s. What is the minimum coefficient of friction between the track and the mouse's feet that would allow a turn at this speed?arrow_forwardA car enters a horizontal, curved roadbed of radius 50.0 m. The coefficient of slatic friction between the tires and the roadbed is 0.20. What is the maximum speed with which the car can safely negotiate the unbanked curve?arrow_forward
- A car travels at a constant speed of 25.5 mi/h (11.4 m/s) on a level circular turn of radius 43.0 m, as shown in the bird's-eye view in figure a. What minimum coefficient of static friction, ?s, between the tires and the roadway will allow the car to make the circular turn without sliding?arrow_forwardA 693 kg car traveling at 32.8 m/s is going around a curve having a radius of 105.5 m that is banked at an angle of 26.4°. The coefficient of static friction between the car's tires and the road is 0.600. What is the magnitude of the force exerted by friction on the car?arrow_forwardA bicycle moves on a flat (horizontal) surface on a circular path. Initially at rest, it accelerates uniformly with a tangential acceleration of 4.6 m/s2. The bicycle makes one quarter of the circle before it skids off the circular path. Find the coefficient of static friction between the bicycle and the surface.arrow_forward
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