Question 1 What is a groove? Question 2 What is a tread? Question 3 Why do gymnasts apply a coarse substance to their hands? Question 4 What is done to increase friction between the tyres and road? Question 5 Why do kabaddi players rub hands with dry soil? Question 6 Why grooves are made in the soles of shoes? Question 7 Explain why sportsmen use shoes with … [Read more...] about Methods of increasing friction