Hi. Is there a formula somewhere in physics (I'm guessing it would be quite basic) which shows the relationship between momentum (Mass x Velocity) and height. The reason I ask relates to a physicist named Robert Goddard. He did as follows:
" In 1915, as assistant professor at Clark University, Worcester, he began experiments on the efficiency of rockets. He bought some commercial rockets and measured their thrust using a ballistic pendulum, a heavy mass suspended by ropes, to which the rocket was attached. The rocket was fired, and the height to which the pendulum rose provided a measure of the total momentum (mass times velocity) imparted to it. Goddard also used an equivalent set-up, where the mass pushed against a spring, instead of being suspended."
http://www.phy6.org/stargaze/Sgoddard.htm
So, I basically want to know, whats the mathematical formula or relationship that he used.
Thanks
2007-10-22
00:35:39
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1 answers
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asked by
Anonymous
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Physics