Unformatted text preview: gR (Min. value of “w” for which the ball can move in a circle) c) Substitution: w=gR y = . / . . 9 8 m s2 2m 1m = 9.9 rads x 60 s1 min x 1 rev2πrad = 95 rpm Conclusion The critical angular velocity occurs when gravity alone is sufficient to cause circular motion at the top of the bowl. Circular motion with an angular velocity less than w min is impossible because there is excessive downward force. The angular velocity depends on the height at which you want to revolve the ball. The height of the angle will change and vertical component of the normal reaction will change accordingly....
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 Fall '09
 MEYERS
 Force, Angular velocity

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