A Horizontal Plank (M = 2

question 26

Multiple Choice

A horizontal plank (m = 2.0 kg,L = 1.0 m) is pivoted at one end.A spring (k = 1.0* 10³ N/m) is attached at the other end,as shown in the figure.Find the angular frequency (in rad/s) for small oscillations.

• A)39
• B)44
• C)55
• D)66
• E)25

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