Question

2. Answer in brief. i) Why are curved roads banked?​

Answer 1

Answer:

When a vehicle moves round a horizontal curve on the road with sufficient speed, the necessary centripetal force is provided by the friction between the tyres and the road. So, to increase the centripetal force, friction should be increased which causes wear and tear of the tyres. If the road is banked on the curve, the necessary centripetal force is provided by the horizontal component of normal resistance.

i.e. Fc = Rsinθ

Here, centripetal force can be increased be increasing the angle of banking. So, roads are banked on curved path.

i hope it will hepl u

Answer 2

Curved roads banked:

Explanation:

• To stay away from the gamble of sliding as well as to diminish the mileage of the vehicle tires, the street surface at a twist is shifted internal, i.e.,
• The external roadside is raised over its inward side. This is called banking of street.
• The justification behind financial bends is to diminish the moving article's dependence on the power of erosion.
• On a bend that isn't banked, a vehicle going along that bend will encounter a power of static grating that will point towards the focal point of the round pathway encircled by the moving vehicle.