What is Law of Friction in Physics

Law of Friction in Physics




The value of limiting friction increases proportionally with the increase in normal reaction. Hence, liming friction F(s} is directly proportional to the normal reaction.



F(s) < R (Here < represents the sign of proportionality don’t’ write it in the examination paper.)




=> FS= UR………….. (i)


U= F(S)/R


u is the constant of proportionality, which depends upon the nature of the surfaces of the two surfaces in contact. It is known as the coefficient of friction. It is only a number without any unit. We know that the normal reaction is directly proportional to the weight of the block, Therefore,


R = W = mg


Substituting the value of R in equation…………… (i)


FS = umg


Note: Technologies have become an integral part of our lives. We use them for work, communication, entertainment, and of course, for education. It seems to me, it is necessary to decide what position we take in relation to new technologies, to answer for ourselves a few questions. Do we know about technology enough? Or too little? How confident are we using them? In what direction is it necessary to move further – to receive new knowledge, or to learn how to use existing ones more effectively? In addition, a lot of money that is paid by the incoming, allows you to update and improve the material and technical base of the university, improve the conditions for studying, living in dormitories, improve the quality of training future specialists.

Share with your *FRIENDS*

Get the Latest Info & Stuff!

Get Latest Guess Papers, Notes and Novels through Email

Click Here to Leave a Comment Below 0 comments

Leave a Reply: