Question

friction always options are - 1- opposes the motion 2- helps the motion 3- both a and b 4 - none of these plz give me correct answer ​

Answer 1

Answer:

Friction always opposes the relative motion between two surfaces which are in physical contact with each other , for this fact :- OPTION (I) IS CORRECT

Remember - friction always act opposite direction of the applied force

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Answer 2

Friction always opposes the relative motion of the body.

Detailed Explanation:

• Friction is a contact force that always resists the relative motion of the body. When a body moves on the surface of another body, it feels a resistive force that opposes its motion known as frictional force. Friction always acts in a direction opposite to the direction of the relative motion of the body.
• Friction can both be harmful and useful. As friction is the opposing force, it reduces the speed of the bodies.
• Due to friction, we can walk. When we walk we push the ground in a downward direction. In accordance with newton's 3rd law, the ground also applies a force on us but in the forward direction.

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