Use the Figure to the Right to Answer the Next

question 106

Multiple Choice

Use the figure to the right to answer the next two problems. A ball of mass m = 100 g and radius r = 10 cm is suspended from a light spring with spring constant k = 4 N / m.The ball is then immersed in oil with viscosity = 0.2 Pa.s and driven at the resonant frequency by a variable force F = F₀ cos (t) at an amplitude of A = 10 cm.
-What is the value of F_o?

• A)0.12 N
• B)0.24 N
• C)0.056 N
• D)1.8 N
• E)0.67 N

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