SOMEONE ASKED 👇
What is the coefficient of static friction between the button and the platform?
HERE THE ANSWERS 👇
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centripetal force = friction
mrω^2 = μmg
rω^2 = μg
(0.144 m)[(42.0 rev/min)(2π rad/rev)(min / 60 s)]^2 = μ(9.81 m/s^2)
μ = 0.284
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