002iiGmMKU KUKr+=+¡+= −which yields K= 2GmM/r= 5.3 ×10−8J. (b) Since the y-component of each force will cancel, the net force points in the –xdirection, with a magnitude 2Fx= 2 (GmM/r2) cos θ, where = tan−1(4/3) = 53°. Thus, the result is 8netˆ( 6.4 10 N)i.F−=− ×G96. The initial distance from each fixed sphere to the ball is
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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.