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MissTica
3 years ago
13

Identify two ways in which friction is not useful in science​

Physics
1 answer:
kiruha [24]3 years ago
8 0

Answer:

  • Friction between brakes and the wheels of a car or bicycle helps the vehicles slow down.
  • If you do not lubricate your bike regularly with oil, the friction in the chain and axles increases.
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A chair exerts a force of 20 N on a floor and is not moving. What force does
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The floor exerts 20 N of force on the chair

Explanation:

We can answer this question by using Newton's third law, which states that:

<em>"When an object A exerts a force (called action) on an object B, object B exerts an equal and opposite force (called reaction) on object A"</em>

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Learn more about Newton's third law:

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