545_Dynamics 11ed Manual

545_Dynamics 11ed Manual - Engineering Mechanics - Dynamics...

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Engineering Mechanics - Dynamics Chapter 17 Solution: Guesses A x 1N = A y 1N = α 1 rad s 2 = Given Mgr 3 2 Mr 2 = A x 0 = A y Mg M r = A x A y Find A x A y , , () = 4.36 rad s 2 = A x A y 0 262 N = Problem 17-54 The wheel of mass m w has a radius of gyration k A . If the wheel is subjected to a moment M = bt , determine its angular velocity at time t starting from rest. Also, compute the reactions which the fixed pin A exerts on the wheel during the motion. Given: m w 10 kg = t 3s = k A 200 mm = g 9.81 m s 2 = b 5N m s = Solution: bt m w k A 2 = bt m w k A
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