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.
Sunday, September 13, 2009
Irodov Problem 1.340
Let the original length of the rod be l. When it moves lengthwise at a speed v relative to a frame K. The length of the rod relative to frame K will be , in other words it will be shorter by a fraction of its original length. Thus, we have,
, in other words it will be shorter by a fraction 
of its original length. Thus, we have,
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