58. Since all surfaces are frictionless, the contact force GFexerted by the lower sphere on the upper one is along that 45° line, and the forces exerted by walls and floors are “normal” (perpendicular to the wall and floor surfaces, respectively). Equilibrium of forces on the top sphere leads to the two conditions wallcos 45andsin 45.FFFmg=°°=And (using Newton’s third law) equilibrium of forces on the bottom sphere leads to the
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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.