Recent content by richukuttan

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    Krotov's Aptitude Test Problems in Physics

    It's there for free download at 4shared.com.
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    Graduate Classical Mechanics - Box sliding down a slope

    This is bcoz u r integrating {d}(\dot x2) and not {d}(\dot x). So, the limits are 0 and v02.
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    Missed my class and don't know how to even begin.

    Hi, The basics are, 2 forces act on the bike:- Friction=Normal force * coefficient of KINETIC friction = (mg cosθ)*k gravitational force=mg sinθ From this info, find acceleration use v2-u2 =2as to find distance use v=u+at to find time. I'm not sure there are no other factors. Pls check!
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    Graduate Classical Mechanics - Box sliding down a slope

    This is bcoz \frac{d}{dt}(\dot x ^2 )=\frac{d}{d\dot x}(\dot x ^2 )*\frac{d}{dt}(\dot x) So,\frac{d}{dt}(\dot x ^2 )=2(\dot x)(\ddot x)