Question

8. a) Proper inflated tyres in a vehiclo save fuel How?
b)When cutting edge of knilo is put against fast rotating stone to sharpen it, sparks are seen
to fly. Explain the reason
Ang​

Answer 1

Answer:

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 .