403_Dynamics 11ed Manual

403_Dynamics 11ed Manual - Engineering Mechanics - Dynamics...

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Unformatted text preview: Engineering Mechanics - Dynamics bt α 1 = −a b e Chapter 16 ⎛ r1 ⎞ ⎟α1 ⎝ r2 ⎠ α2 = ⎜ (α 2 r3)2 + (ω22r3) aP = 2 aP = 10.02 in 2 s As t approaches ∞ ω1 = a ωf = r1 r2 ω1 vf = r3 ωf vf = 16.00 in s Problem 16-10 The disk is originally rotating at angular velocity ω0. If it is subjected to a constant angular acceleration α, determine the magnitudes of the velocity and the n and t components of acceleration of point A at the instant t. Given: ω0 = 8 α=6 rad s rad 2 s t = 0.5 s r = 2 ft Solution: ω = ω0 + α t vA = rω vA = 22.00 ft s at = rα at = 12.00 ft 2 s an = rω 2 an = 242.00 ft 2 s 401 ...
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