Normal and Friction Force Relationships went turning curbs

In summary, we discussed how to determine if the frictional force is sufficient to keep a car in circular motion while turning a corner. We also discussed the relationship between the car's mass, speed, and radius of the turn, as well as the coefficient of friction and normal force. Additionally, we explored the force needed to provide the necessary acceleration and where that force comes from. Finally, we considered the limit on the size of the force that may indicate it is not large enough to maintain circular motion.
  • #1
daniel.j
3
0
how can you tell if the frictional force is great enough to keep a car turning a curb in circular motion based on the coefficient of friction and the normal force?
 
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  • #2
If a vehicle of mass m turns a corner radius r at speed v, what is its acceleration? What force is needed to provide that acceleration? Where will that force come from?
 
  • #3
Acceleration: 0.173 m/s/s
Force is coming from engine but the street is wet with oil.
 
  • #4
A car with a velocity of 15.3 m/s follows a circular road that has a radius of 40 m. The car has a mass 1350 kg. The pavement is wet and oily so the coefficient o friction between the tires and the road is only .500. The frictionall force that I calculated came out to be 6620 Newtons. Is this frictional force large enough to maintain the car in circular motion?
 
  • #5
daniel.j said:
A car with a velocity of 15.3 m/s follows a circular road that has a radius of 40 m. The car has a mass 1350 kg. The pavement is wet and oily so the coefficient o friction between the tires and the road is only .500. The frictionall force that I calculated came out to be 6620 Newtons. Is this frictional force large enough to maintain the car in circular motion?
Please don't just tell me numbers. To figure out what you're doing I then I have reverse engineer the calculations. Let's just work with the algebra until we agree the equations.
A car mass M turns a corner radius R at constant speed V. What is its acceleration (magnitude and direction)? What force will provide that acceleration (and no, it's not the engine)? How large is the force? What limit on the size of the force might mean it is not large enough to turn the corner?
 

1. What is the normal force and how does it relate to turning on a curb?

The normal force is the perpendicular force exerted by a surface on an object in contact with it. When turning on a curb, the normal force helps to keep the vehicle from slipping off the road and provides the necessary centripetal force to keep the car moving in a circular path.

2. How does the angle of the curb affect the friction force?

The angle of the curb can impact the friction force in two ways. First, a steeper angle will require a larger normal force, which in turn will increase the maximum static friction force that can be exerted. Second, a sharper angle will also increase the lateral component of the normal force, which can increase the lateral (or sliding) friction force.

3. Can the friction force be greater than the normal force?

No, the maximum static friction force is directly proportional to the normal force. This means that the friction force cannot exceed the normal force.

4. How does the weight of the vehicle affect the normal and friction forces when turning on a curb?

The weight of the vehicle increases the normal force, which in turn increases the maximum static friction force that can be exerted. This means that heavier vehicles will have a greater ability to turn on a curb without slipping.

5. What factors can influence the normal and friction forces when turning on a curb?

The normal and friction forces can be influenced by various factors such as the speed of the vehicle, the angle of the curb, the weight and size of the vehicle, the condition of the road surface, and the type of tires on the vehicle. Other factors such as weather conditions, the presence of oil or debris on the road, and the skill level of the driver can also affect these forces.

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