problem 9 a spherical ball of mass m and radius r rolls down a tra3271
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Problem 9. A spherical ball of mass m and radius r rolls down a track and around a loop -the- loopof radius R. The initial height of the center of
mass of the ball is h+r. Find the minimum height,h, that the ball must start with in order to make it around the loop. Hint: Don't ignore the radius of the ball in any part of the calculation.2