Which statement concerning friction is INCORRECT ?

waelhammad

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2022-10-22

Friction within liquids is greater than that between dry solids.
Within the human body friction is reduced by fl uids such as saliva, serous fl uid, mucus etc.
Friction exists whenever two surfaces are in contact.
Sliding friction is less than static friction.

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waelhammad

2022-10-22

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A: Frictional forces within liquids are lower than within solids. Sliding friction IS less than static friction.

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