Question

1. How is the centripetal force applied to a car to keep it on the pavement when it is rounding a curve?

2. In racetracks for cars, the outer portion of the track is higher than the inner portion at curves. Why?

Answer 1

centri petal force is the force which acts towards the center and it prevents the car with out slipping

centripetal force f = ma

where a = v^2/r

f = mv^2/r

r is the radius of the curved surface

2) this is the banking of roads.

The phenomenon of raising outer edge of the curved road above the inner edge is to provide necessary centripetal force to the vehicles to take a safer turn and the curved road is called banking roads.

to provide the necessary centripetal force to the car.