The 2.28-kg uniform slender bar rotates freely about a horizontal axis through O. The system is released from rest when it is in the horizontal position e = 0 where the spring is unstretched. If the bar is observed to momentarily stop in the position e = 66°, determine the spring constant k. For your computed value of k, what is magnitude of the angular velocity of the bar when e = 48°. B 0.85 m 0.85 m 2.28 kg 0.29 m

Elements Of Electromagnetics
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Author:Sadiku, Matthew N. O.
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The 2.28-kg uniform slender bar rotates freely about a horizontal axis through O. The system is released from rest when it is in the
horizontal position 0 = 0 where the spring is unstretched. If the bar is observed to momentarily stop in the position 0 = 66°,
determine the spring constant k. For your computed value of k, what is magnitude of the angular velocity of the bar when 0 = 48°.
B
0.85 m
0.85 m
2.28 kg
0.29 my
Answers:
k =
i
N/m
ω-
rad/s
1
Transcribed Image Text:The 2.28-kg uniform slender bar rotates freely about a horizontal axis through O. The system is released from rest when it is in the horizontal position 0 = 0 where the spring is unstretched. If the bar is observed to momentarily stop in the position 0 = 66°, determine the spring constant k. For your computed value of k, what is magnitude of the angular velocity of the bar when 0 = 48°. B 0.85 m 0.85 m 2.28 kg 0.29 my Answers: k = i N/m ω- rad/s 1
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