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• Setup Static Ip Windows 10

Why does the force push it perpendicular to the direction of the velocity? This is the most intuitive explanation I can think of: When turning the wheels, the car still wants to continue straight ahead. Because of the inertia, the car is not just stopped but wants to go on forward (the effect is known as the centrifugal effect.) When you turn the wheels, so they don't follow the motion perfectly anymore, they should slide over the asphalt as the car continues forward. You have then caused a velocity-component perpendicular to the wheels, in which direction they can't turn - they can only slide.

But the car doesn't start sliding and burning your Goodyear rubber tires (it doesn't continue forward without change). Static friction will prevent that.

That static friction is pulling in the wheel to oppose that slide ( preventing any perpendicular velocity-component) to prevent the car from slipping and sliding. Be reminded that friction is always something that tries to prevent a motion. It will always act the exact opposite way as the motion/velocity it is trying to stop - in this case, exactly opposite to the perpendicular velocity-component of the wheel.

Setup Static Ip Windows 10

This introduced static friction will always be perpendicularly to the wheels direction. Any parallel component of this force would have been in the direction of the wheels rotation, and so wouldn't stop or change the motion (but just keeps the wheels rotating). And acceleration always happens in the direction of the (net) force, $ vec F=m vec a$. This is why; the intuitive way.

If it's not accelerating in the direction of (forward travel), then it's engine force exactly equals the frictional and aerodynamic losses (constant velocity). For a given velocity, the forces the tires must exert on the car to keep it in a circle increase to prevent it from 'escaping', and can be visualized by a vector pointing away from the center of the car (the imaginary/'apparent', but sometimes convenient, ). This must be countered by a force 'pulling' the car to the center,. I drew you a picture: Basically, the key to note here is that the net forces MUST all cancel to zero in all planes, or it's not at a constant velocity. If the front/back forces were unequal in magnitude the car would slow down or speed up in forward velocity; if the tires could not provide the centripetal force to resist flinging out from the circle the car would travel in a straight line or ellipse-style thing depending on the steering wheel, and if they provided additional centripetal force the car would travel in an ellipse style thing starting into the center of the round track. Note that it's a common practice in certain styles of racing, like F1 cars, to increase aerodynamic drag and use it to push the car harder to the pavement, thereby using some of the stored velocity (force provided from the engine) to increase the coefficient of friction between the tires and the road thus allowing for more centripetal force than gravity would otherwise provide.

This makes for interesting scenarios in which some corners can only be taken up to 50 MPH where aerodynamic forces aren't high enough, but then navigated again at 90-120 MPH (as a loose example) where the added allows the tires to exert more centripetal force on the car. You first need to know about.

Rotating objects experience this apparent force. If you sit on the rotating object you will experience this force but it can not be experienced by an outside observer and as soon as the rotation stops this force vanishes that is why it is called a. In your question the first thing to think is how the car changes its direction to follow a circular path. Its the bending of the front wheels. But if there is no friction between the front wheels and the road but there is between the back wheels and the road, the front wheels would just slip no matter how much it is bent and the car would go straight. To prevent the wheels from slipping and follow the curved path friction between the front wheels and the road is needed. Friction prevents the wheels from slipping and the car to go in the tangential direction.

So, the car moves in the direction as given by the bending of the front wheels. But at the same time the car is rotating.

It experiences the centrifugal force that is pushing it directly away from the center of the circular path. So, again friction is the major reason of keeping the car in track. The friction between all the wheels and the road acts opposite to the centrifugal force i.e., towards the center of the circular path.

In this way, combining all the things the friction between the wheels and the road does, it helps the car follow a curved path. Anything that tries to go around in a circle, is acted upon by a radial force, which we call the Centrifugal force. This force, being perpendicular to the objects's (here, its your car) velocity, acts in the outward (radial) direction.

Obviously, for the car to go around the circle, there must be some external force to compensate the centrifugal force, in the absence of which, your car will be thrown out (think of a friction-less road/icy road). This force is the frictional force provided by the wheels of your car. Since the centrifugal force is continuously trying to take the car outside, the frictional force (or rather, static frictional force) must continuously act pointing towards the center of the circle (as by defn, frictional force always opposes relative motion bw objects). Another way to think about this: If the situation is completely friction-less, you can tie a rope to the C.O.M of your car (I don't know how) and loop it up on a pole at the center of the circle you wanna go around. This will also provide the necessary centripetal force to compensate the centrifugal force, and here the centripetal force must be tension in the rope. Hope it helps. According to, 'rolling friction' is a consequence of the normal force so it should be separate from static friction, although the diagram only shows rolling friction opposing the direction the wheel is rolling, not sure if it would still be called rolling friction in the case the force perpendicular to the direction of rolling for a wheel that's tilted away from the vertical (though it seems like a variant of the diagram showing the deformation of the surface would still apply to this case).

– Jan 13 '15 at 4:57.