A surface is rubbed to make it smoother. What effect will this have on friction give reason
Answers
Hey mate...... Here is the correct answer :
if a surface is rubbed to make it smoother then the interlocking between the surfaces will be less and as a result the surface will have a lesser friction as compared with that it had initially this is because friction is mainly due to the ups and downs that are present in any surface and the other surface like a ball a book or anything stuck with these up and down and they interlocked with each other but when we apply some lubricant then the interlocking between the two surfaces is less and the friction is reduced
TRIVIA
friction or of three types static friction is sliding friction and rolling friction when ever a thing or an object is stationary there is is static friction which is acting on it so if we try to push or pull that object or we apply an external force then the static friction will also increase but there is a limit of static friction increasing and that is called limiting friction so after a while the limiting friction is less than the external or applied force and the object starts moving while in rolling friction some rotating object or torque is involved
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