A flat (unbanked) curve on a highway has a radius of 235.0 m. A car rounds the curve at a speed of 23.0 m/s. What is the minimum coefficient of static friction that will prevent sliding?
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- Current Attempt in Progress The drawing shows a baggage carousel at an airport. Your suitcase has not slid all the way down the slope and is going around at a constant speed on a circle ((r= 11.0 m) as the carousel turns. The coefficient of static friction between the suitcase and the carousel is 0.520, and the angle in the drawing is 7.45°. How much time is required for your suitcase to go around once? Assumme that the static friction between the suitcase and the carousel is at its maximum. Number UnitsA 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 =At what maximum speed can a car negotiate a turn on a wet road with coefficient of static friction 0.200 without sliding out of control? The radius of the turn is 27.5 m.
- A 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?Car A uses tires for which the coefficient of static friction is 0.217 on a particular unbanked curve. The maximum speed at which the car can negotiate this curve is 12.3 m/s. Car B uses tires for which the coefficient of static frictionis 0.767 on the same curve. What is themaximum speed at which car B can negotiate the curve?A 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:
- A 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?Two 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?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?
- In 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?A 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?A 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?