Question
dynamics
Fundamental Problem 18.9 The 78-kg rod OA is released from rest when 0 = 0° (Figure 1) Figure 1 of 1 k = 150 N/m 3 m C
Part A Determine its angular velocity when 0 = 45°. The spring remains vertical during the motion and is unstretched when 0 =
0 0
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Answer #1

soin I x= 150m Given that Si: 0 datum Mass rod: 78 kg 5 of het when 3m angulan verocity 0-45.be Wa. ya 3 2 sin 45 1.06066 m OVas-811. 5958 7 337.5 potential enengy in ② : Vas - 474.0958 J Kinetic energy, rest. SoT,=o. ca oso, nod is released from b

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