Ferdinand Posted January 17, 2006 Share Posted January 17, 2006 Tom is a very large fellow, who is also a fishmonger. What does he weigh? Link to comment Share on other sites More sharing options...
NPK Posted January 17, 2006 Share Posted January 17, 2006 He weighs fish Link to comment Share on other sites More sharing options...
ski_power Posted January 17, 2006 Share Posted January 17, 2006 that was sooo funny... he weighs fish. How about this: consider, Mass of Tom=m Mass of Earth=M Newton's Gravitational constant=G Acceleration due to gravity=g Radius of Earth=R We know, F α Mm/R^2 F=GMm/R^2 GM=F(R^2)/m where F/m=g therefore, GM=gR^2 Let Tom be at a height h from the surface of the earth, GM=(g*)(R+h)^2 g*=Gravity at height h above earth's surface. Therefore weight of Tom W, W=(g*)(m) Final answer W= (g*)(m) Now considering Tom moving at a velocity v, where v is not neglible compared to the speed of light c. We know m0= (I'm getting bored now, anybody care to complete it?) Link to comment Share on other sites More sharing options...
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