NCERT VIII - Sciences Fill in the blanks: (b) Friction depends on the _________of surfaces.
Answers
Answer: NATURE
Explanation: According to the laws of friction, friction is directly proportional to the normal force (N) acting perpendicular to the friction surfaces when an object is in motion. Friction also depends upon the nature of surfaces in contact as various surfaces have various coefficient of frictions.
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Answer:
The friction force in reality depends on the two factors: Firstly, friction force depends on the materials that are in contact. The two materials and the typical nature of their surfaces plays a pivotal role in creating friction. Secondly, pushing the surfaces together results in the more of the asperities to come organized and increases the surface area in contact with each other.