77. We note that rA(the distance from the origin to sphere A, which is the same as the separation between Aand B) is 0.5, rC= 0.8, and rD= 0.4 (with SI units understood). The forcekFGthat the kthsphere exerts on mBhas magnitude 2/kB kGm mrand is directed from the origin towards mkso that it is conveniently written as ()23ˆˆˆˆ=i+j=i+j.kBkkkk
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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.