Question

give examples to show that friction is both a friend and a foe​

Answer 1

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.

Answer 2

some  examples to show that friction is a friend ​  are:

• we are able to walk because of frictional forces between ground and our feet.

• We are able to write because of friction between ball point and the paper surface.

some  examples to show that friction is  a foe​  are

• Wear and tear of soles of our shoes is due to friction.

• When a tyre deflates, it is difficult to move the vehicle because of increased friction between the tyre and the road surface

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