# What Is The Minimum Coefficient Of Friction Needed For A Frightened Driver

What’s the minimum coefficient of friction needed if the car is to stay on the road ?, The minimum friction coefficient required is 0.4.

Furthermore, What is the ideal speed to take a 126.0 m radius curve banked at 20.0 angle ?, Question: 1. What Is The Ideal Speed ​​To Take A 75 M Radius Curve Banked At A 20.0° Angle? ____ m / s 2.

Finally, How do you find the coefficient of friction with radius and velocity ?, That is, we must have a coefficient of static friction of s = v2/ gr to provide the friction force to allow a car, traveling at speed v, to make it around a flat curve of radius r. This is the maximum speed that a curve of radius r can be taken when the coefficient of static friction between tires and pavement is s.

### What is the maximum speed at which the car can turn without slipping?

The maximum velocity for the car is about 12 m / s.

### What is the maximum speed at which a car can round a curve?

Find the maximum speed at which a car can turn round a curve of 30m radius on a level road if coefficient of friction between the tires and road is 0.4. Takeg = 10m / s2. υ = √μrg = √0.4 × 30 × 10 = √120 = 11m / s.

### When a vehicle is taking a turn on an unbanked road without slipping in or skidding out the necessary centripetal force is provided by the?

In case of earth, gravitational force provides the necessary centripetal force and in case of vehicle in a curved pathfriction force provides that necessary centripetal force.

### How do you find the coefficient of friction with velocity?

The formula to calculate the coefficient of friction is μ = f ÷ N. The friction force, f, always acts in the opposite direction of the intended or actual motion, but only parallel to the surface.

### How do you solve for coefficient of friction?

The coefficient of friction (fr) is a number that is the ratio of the resistive force of friction (Fr) divided by the normal or perpendicular force (N) pushing the objects together. It is represented by the equation: fr = Fr / N.

### How do you find the coefficient of friction in circular motion?

That is, we must have a coefficient of static friction of s = v2/ gr to provide the friction force to allow a car, traveling at speed v, to make it around a flat curve of radius r. This is the maximum speed that a curve of radius r can be taken when the coefficient of static friction between tires and pavement is s.

### What is the coefficient of friction between the car’s tires and the road?

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 μs of static friction between the road and the car?

The minimum coefficient μs of static friction between the road and the car is 0.612.

### What minimum coefficient of friction is needed?

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.

### How does friction keep a car on the road?

When a car slows down, the friction between the road and the tires helps to bring the car to a stop as the wheels slow down. It is the friction between the wheels and the brake pads that causes the wheels to slow down. … Even if the wheels stopped turning, the car would keep sliding over the low-friction roads!!

### What is friction on a car?

Friction is a resisting force that resists the relative motion of two surfaces. Simply put, when driving, the engine generates a force on the driving wheels that moves the vehicle onwards. Friction is the force that opposes the tire rubber from sliding on the road surface.

### Why does driving on a road require friction?

Explain why driving on a road requires friction. … Friction between the tires and the road enables the tires to push against the road and vice versa so that the car experiences a net force and moves forward or makes a turn. To increase frictionon an icy roadyou could put salt or sand on the road.

### How does friction affect the speed of a car?

Simply so, how does friction affect a car’s speed? Friction may slow the car down as it moves along the road, but it is also the force that enables the car to move forward at all. So, it is the force of friction that makes a car accelerate forward and also decelerate to a stop.

### What type of friction stops a car?

Anti-lock brakes prevents the wheels from locking and sliding and provide the operations of wheels turning while stopping – this way, the more efficient friction (static friction) is used to stop the vehicle; the vehicle will stop in shorter time and distance and you will have a better control of your vehicle.

### What should be the minimum coefficient of friction?

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.

### What minimum coefficient of static friction is required?

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.

### Is the coefficient of friction less than 1?

The coefficient of friction depends on the objects that are causing friction. The value is usually between 0 and 1 but can be greater than 1. A value of 0 means there is no friction at all between the objects; such is possible with Superfluidity. … A value of 1 means the frictional force is equal to the normal force.

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