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killer tips for physics.....Hi guys and gals these are some of the concepts throughout physics which i was able to pick up throughout my jee preparation by some deep thought....hope u find them useful!! some of u might already know many of these but still.....here goes...1) F=ma is not the correct definition of force...it is valid only when m is constant.. F=d(mv)/dt = vdm/dt+mdv/dt is correct... 2) Frictional force does not depend upon the area of contact...3) All forces at the molecular level are conservative...at macroscopic level forces such as normal force,tension.friction etc are all due t
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submitted by rohith291991 (516 m) on 8 Feb 2008 18:48:29 IST (39 comments 942 views)
