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\\(undefined\\) \\(undefined\\) m/s and \\(undefined\\) rad/s counterclockwise.

ID: 1863105 • Letter: #

Question

(undefined)

(undefined) m/s and (undefined) rad/s counterclockwise. Point A is .4 m behind a nd .4 m above point B, and bar BC is .85 m long. What is (undefined) and what are the coordinates of the instantaneous center of rotation of bar AB? (undefined) degrees.

(undefined) (undefined) m/s and (undefined) rad/s counterclockwise. Point A is .4 m behind a nd .4 m above point B, and bar BC is .85 m long. What is (undefined) and what are the coordinates of the instantaneous center of rotation of bar AB? (undefined) degree s.

Explanation / Answer

Va = r(B/C)j X wBCk + r(A/B) X wAB

18i - 3j = 0.85*wBC i + (-0.4i - 0.4j) X -1k

18i - 3j = 0.85wBC i - 0.4j + 0.4i


18 = 0.85wBC + 0.4


wBC = 20.7rad/s


Instantaneous axis of rotation = (0, 2.8)

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