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.
Wednesday, January 6, 2010
Irodov Problem 1.370
As the particle moves its mass increases. When the velocity of the particle is v, its mass is given by, .
Consequently its momentum is given by
Now we can solve for v from equation from (1) and obtain,
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