Very Short Answer Type Questions 1. What is force of friction?
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Answer: Frictional force refers to the force generated by two surfaces that contacts and slide against each other.
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Friction is the force that resists motion when the surface of one object comes in contact with the surface of another. The mechanical advantage of a machine is reduced by friction, or in other words, the ratio of output to input is reduced because of friction. An automobile uses one-quarter of its energy on limiting the friction.
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