PEARSON ETEXT ENGINEERING MECH & STATS
15th Edition
ISBN: 9780137514724
Author: HIBBELER
Publisher: PEARSON
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The wheel of radius R rolls without slipping, and itscenter O has an acceleration aO. A point P on the wheelis a distance r from O. For given values of aO, R, and r,determine the angle θ and the velocity vO of the wheelfor which P has no acceleration in this position.
An external drive system actuates the mechanism by applying a moment M at
bearing D. At the instant 0 = 45°, the magnitude of the velocity vector of point C
is 14 m
upward and to the left and the angular acceleration of link CD is 50
rad
in
the CCW direction. Determine the y-component of the acceleration vector of point
G in m at this instant. Consider L = 6 metres.
E
y
+.
M
Bar BC rotates about the fixed pivot B with constant angular velocity w = 3 rad/s. Pin A is fixed
to bar OA, which rotates about a fixed axis through point O, and is engaged in the slot of member
BC. If at the instant presented, 0 = 35°, calculate the angular velocity and angular acceleration of
bar OA for this instant. Use d = 0.3 m and l = 0.6 m. (wOA = 3.94 rad/s CW, ao₁ = 3.64 rad/s²
CCW)
d
A
l
B
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