473_Dynamics 11ed Manual

473_Dynamics 11ed Manual - Engineering Mechanics - Dynamics...

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Engineering Mechanics - Dynamics Chapter 16 a B 1.90 1.21 0.00 m s 2 = a B 2.25 m s 2 = θ atan α r cos () ω 2 r sin () + r r sin () + 2 r cos () + = 32.6 deg = 32.62 deg = Problem 16-114 The disk is moving to the left such that it has angular acceleration and angular velocity at the instant shown. If it does not slip at A , determine the acceleration of point D . Given: 8 rad s 2 = r 0.5 m = φ 45 deg = 3 rad s = 30 deg = Solution: a D r 0 0 0 0 r cos () r sin () 0 × + 0 0 0 0 r cos () r sin () 0 × × + = a D 10.01 0.35 0.00 m s 2 = a D 10.02 m s
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