Question

8. Explain why sliding friction is less than static friction
9. Give examples to show that friction is both a friend and a foe​

Answer 1

Answer:

Explanation:

Examples to show that friction is a friend and a foe: Friction is friend: (i) Friction allows us to grip and catch different objects. (ii) It helps us to walk comfortably on the surface. (iii) It helps to minimize the speed or to stop the moving objects. ... Friction is foe: (i) Friction causes wear and tear in objects.