A pendulum is constructed of a solid sphere of mass M and radius a, which is attached to the end of a rod, of mass m and length 1¹. Show that there will be no strain on the axis if the pendulum be struck at a distance [M { ¾a² + (a + b)²} + ¼ mb²] + [M (a + b) + /2 mb] 1 1 3 from the axis.
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