A construction company made level the road at a shop done the Civil engineer of the company rejects the role and advised them Advice the contractor to keep the outer edge banked explain why banking of her off-road is necessary for safety of a car taking turn

Banking of the outer edge of a road is necessary for the safety of a car taking a turn due to the following reasons:

1. Centripetal Force: When a car takes a turn, a centripetal force acts towards the center of the curve. This force is responsible for keeping the car on the road. If the road is not banked, this force can cause the car to slip towards the outer edge of the turn, potentially leading to accidents.

2. Frictional Force: The friction between the tires of a car and the road surface provides the necessary grip to maintain control while taking a turn. When the road is banked, the overall force due to gravity acting on the vehicle is divided into two components: the normal force perpendicular to the road and the horizontal component acting towards the center of the curve. This horizontal component increases the frictional force between the tires and the road, allowing for safer turns.

3. Stability: Banked roads provide stability to cars while turning. The slope of the road allows the car to exert a force towards the center of the curve, preventing sideways sliding. This stability enhances the overall control of the car, ensuring a safer driving experience for the driver and passengers.

4. High Speeds: Banked roads are particularly important for roads where higher speeds are anticipated, such as highways or racetracks. As speeds increase, the centrifugal force acting on the vehicles also increases. Without proper banking, high speeds can lead to vehicles sliding off the road during turns, causing accidents and potential injuries.

In conclusion, banking of the outer edge of a road is necessary to ensure the safety of cars while taking turns. It provides the required centripetal force, increases frictional force, enhances stability, and allows for safe navigation, especially at higher speeds.