ch13-p085 - 85. We use m1 for the 20 kg of the sphere at...

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85. We use m 1 for the 20 kg of the sphere at ( x 1 , y 1 ) = (0.5, 1.0) (SI units understood), m 2 for the 40 kg of the sphere at ( x 2 , y 2 ) = ( 1.0, 1.0), and m 3 for the 60 kg of the sphere at ( x 3 , y 3 ) = (0, 0.5). The mass of the 20 kg object at the origin is simply denoted m . We note that 12 1.25, 2 rr == , and r 3 = 0.5 (again, with SI units understood). The force n F G that the n th sphere exerts on m has magnitude 2 / nn Gm m r and is directed from the origin towards m n , so that it is conveniently written as
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This note was uploaded on 05/17/2011 for the course PHY 2049 taught by Professor Any during the Spring '08 term at University of Florida.

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