a coin is placed on a rotating disc whose angular velocity is 2 pi rad/s. If...
a coin is placed on a rotating disc whose angular velocity is 2 pi rad/s. If the coefficient of static friction between the coin and the disc is 0.6, what is the maximum distance from the center of the disc that the coin can be placed on without it slipping off?
Homework Answers
Friction provides required centripetal force.
μmg=mrΩ2
r=μg÷Ω^2=0.6×9.8÷(2×3.14)^2=0.149 m
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a platform is rotating at an angular speed of 2.4
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determine the maximum constant angular velocity of the table
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