Question

Is friction a 'Friend' or 'Foe'? Discuss​

Answer 1

Answer:

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.

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Answer 2

Answer:

Friction is a friend:

1. It allows us to walk over the surface
2. It allows to catch different things and get perfect grip
3. It minimises or stops the moving object
4. It allows us to write in blackboard or paper
5. The objects will not move from its place due to friction between surfaces

Friction is a foe:

1. It causes wear and tear in objects
2. It causes damage to moving parts of machine
3. The tools or machines regular maintainence due to which a lot of money is wasted
4. It doesnot allow free movement of objects
5. It minimises speed or stop the moving object so more force is required