Newton single handedly brought about a new era in our understanding of the physical world, through his famous equation F = ma and the law of gravity. These laws successfully predict the behavior of all phenomena from the microscopic world to the astronomical world! Ofcourse, Einstien changed things once again but that was only after about 4 centuries. Solving Irodov dramatically helped me understand the power, elegance, simplicity and beauty of Physics. Hopefully you will enjoy the journey too.
Saturday, November 24, 2007
Irodov Problem 1.97
a) Force is rate of change of momentum and so we have,
The force will cease act when F=0 or and from (1) thus we have . b) P = mv and and so we have,
When the force stops at we have the distance traveled from (2) as .
and from (1) thus we have 
.
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