Question

Give two examples that friction is friend and friction is enemy

Answer 1

Explanation:

• Examples of friction is friend =
• we are able to walk because of frictional forces between ground and our feet.
• we are able to write because of frictional force between the ball point and paper surface.

• Examples of friction is enemy=
• wear and tear of soles of our shoes is due to friction.
• Machines get heated up and produce noise because of friction.

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