Question

friction is very useful as it helps in the ___ of bodies​

Answer 1

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Answer 2

Friction is useful as it helps in resisting the motion of bodies.

• Friction is defined as the resistance experienced by a moving body when it slides or rolls over another body.
• It always acts in the direction opposite to movement of the object; it slows it down. The amount of friction experienced depends on the material of the body. This also produces heat.
• There are four types of friction- sliding friction, rolling friction, static friction and fluid friction.