Question

Haw does the proper inflation of tyre save fuel?

• A. Normal reaction decreases.
• B. Normal reaction increases.
• C. Sliding contact with the road decreases
• D. Sliding contact with the road increases

Answer 1

The correct option is C Sliding contact with the road decreases

We know that sliding friction is greater than rolling friction .When tyres are not properly inflated , they become a bit flat and sliding contact of tyres increases , which results in more fuel consumption . But , if the tyres are properly inflated sliding contact with the road decreases and rolling friction comes into play , which saves the fuel .