20.1-20.3 Reading Question 20.11 7 of 20 The disk is perpendicular to the horizo
ID: 1732974 • Letter: 2
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20.1-20.3 Reading Question 20.11 7 of 20 The disk is perpendicular to the horizontal part of the shaft and rotates relative to it with angular velocity wd. Relative to an earth-fixed reference frame, the shaft rotates about the vertical axis with angular velocity wo. If the general motion velocity equation in the form of Vp VA X TpIA is applied to the disk to determine the velocity of point P (relative to the earth-fixed frame) in the position shown, what are the correct expressions of VA and w? od ao Submit Request AnswerExplanation / Answer
Answer: Option (1)
VA= (w0k) * (dj) , w = wdj
Here VA represents the velocity of the center of the disk relative to the fixed ground, so it equals (w0k) * (dj), while the w-the angular velocity of disk, is used to find velocity of point relative to the center of the disk, so w = wdj.
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