問題詳情

11. A block whose mass m is 650 g is fastened to a spring whose spring constant k is 65 N/m. The block is pulled a distancex = 11 cm from its equilibrium position at x = 0 on a frictionless surface and released from rest at t = 0. What is the angularfrequency of the resulting oscillation motion?
(A) 8 rad/s
(B) 9 rad/s
(C) 10 rad/s
(D) 11 rad/s
(E) 12 rad/s.

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