## Why are racetracks often banked at the corners what would happen if they are not?

NASCAR tracks use banked turns that are sloped to keep race cars tilted inwards. The race cars, which can reach speeds faster than 200 mph, would fling outwards and off the track if not for the banked turns.

Where does friction point on a banked curve?

The reason for banking curves is to decrease the moving object’s reliance on the force of friction. On a curve that is not banked, a car traveling along that curve will experience a force of static friction that will point towards the center of the circular pathway circumscribed by the moving car.

At what angle should the road be banked?

A banked surface is one that slopes upward towards the outer edge of a curve. Banked surfaces exist at on-ramps to highways because cars have to start traveling faster to enter the highway. The angle of banked surfaces of race car tracks range from 12° to 36°.

### What is the relationship between centripetal force and acceleration?

The direction of a centripetal force is toward the center of curvature, the same as the direction of centripetal acceleration. According to Newton’s second law of motion, net force is mass times acceleration: net F = ma. For uniform circular motion, the acceleration is the centripetal acceleration—a = ac.

What is the role of friction in a banked turn?

Notice that the friction force acts up the incline, to keep the car from sliding toward the center of the turn.

Which force is responsible for holding a car in a frictionless banked curve?

The centripetal force causing the car to turn in a circular path is due to friction between the tires and the road. A minimum coefficient of friction is needed, or the car will move in a larger-radius curve and leave the roadway.

## What is faster NASCAR or Formula 1?

In terms of outright speed, Formula 1 race are faster than NASCARs. Formula 1 cars achieve a 235 mph top speed and sprint from 0 to 62 mph in 2.5 seconds whereas a NASCAR’s top speed has been recorded at 212 mph and accelerate from 0 to 62 mph in 3.5 seconds.

What is normal force on a banked curve?

When the curve is banked, the centripetal force can be supplied by the horizontal component of the normal force. In fact, for every banked curve, there is one speed at which the entire centripetal force is supplied by the horizontal component of the normal force, and no friction is required. Example: Banking angle.

At what angle should the curve be banked?

So, the banking angle should be about 33o.