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kumpel [21]
4 years ago
9

A 10 mg bead is free to slide on a frictionless wire loop. The loop rotates about a vertical axis with angular velocity ω. If ω

is less than some critical value ωc, the bead sits at the bottom of the spinning loop. When ω>ωc, the bead moves out to some angle θ. Suppose R = 3.0 cm. What is ωc in rpm for the loop? At what value of ω , in rpm, is θ = 30∘?
Physics
1 answer:
sveticcg [70]4 years ago
6 0

Answer: 19.4 rad/sec

Explanation:

Weight of the bead: W=10mg

Radius of the circular loop is:

R= 3/100 = 0.03m

Angle = 30°

w=sqrt(mg/Rcos-tita

w=sqrt(9.8/0.03×cos(30°))

w=sqrt(377.2)

w=19.4 rad/sec

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