Table of Contents
- 1 How large must the coefficient of static friction be between the tires and the road if the car is to round a curve banked 10\% at a radius of 200 m at a speed of 100 kph?
- 2 What is the coefficient of static friction between road and tires?
- 3 What is the coefficient of static friction between the coin and the turntable?
- 4 What minimum coefficient of static friction is required?
- 5 How do you find the maximum coefficient of static friction?
How large must the coefficient of static friction be between the tires and the road if the car is to round a curve banked 10\% at a radius of 200 m at a speed of 100 kph?
0.81
During the circular motion, the frictional force provides the net radial force. Therefore, the coefficient of static friction be between the tires and the road is 0.81.
How large must the coefficient of friction be between wheels and roadway if the car is not to skid?
How large must the coefficient of friction be between wheels and roadway if the car is not to skid? Answer: 0.32..
What is the coefficient of static friction between road and tires?
about 0.7
Jones and Childers report coefficients of friction of about 0.7 for dry roads and 0.4 for wet roads.
What is the minimum coefficient of friction between the road and a car’s tires if the car is to turn a curve of 50 m radius safely at 30 m s?
The minimum friction coefficient required is 0.4 .
What is the coefficient of static friction between the coin and the turntable?
0.30
The coefficient of static friction between a small coin and the surface of a turntable is 0.30.
How large must the coefficient of static friction be between the tires and the road if a car is to round a level curve of radius 85 m at a speed of 92 km/h 1?
A frictional coefficient of unity yields 1 g = 9.81 m/s of centripetal acceleration on level ground, so the required frictional coefficient is: = 8.193/9.81 = 0.835.
What minimum coefficient of static friction is required?
0.21
The minimum coefficient of static friction can be obtained from this equation: If the velocity of the car is 72 km/hr (20 m/s) and the radius of curvature R = 190 m, the minimum value of the coefficient of static friction is 0.21.
Why is coefficient of static friction larger?
Static friction is greater than kinetic friction because there are more forces at work keeping an object stationary than there are forces working to resist an object once it is in motion.
How do you find the maximum coefficient of static friction?
The maximum static friction force is: (fs)max = μs N where μs is the coefficient of static friction. Static friction is subtle because the static friction force is variable and depends on the external forces acting on an object.