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Engineering Mechanics - Planar Kinematics of a Rigid Body (PKRB) - Discussion

Discussion Forum : Planar Kinematics of a Rigid Body (PKRB) - General Questions (Q.No. 8)
Planar Kinematics of a Rigid Body (PKRB)
8.

As the cord unravels from the wheel's inner hub, the wheel is rotating at = 2 rad/s at the instant shown. Determine the magnitudes of the velocities of point A and B.

vA = 10.77 in./s, vB = 10.00 in./s
vA = 10.00 in./s, vB = 10.00 in./s
vA = 10.77 in./s, vB = 14.00 in./s
vA = 4.00 in./s, vB = 14.00 in./s
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
2 comments Page 1 of 1.
Don Dyllione said:   9 years ago
IVC is 2 directly right of the origin where rope meets inner hub. Then calculate from there.
Kelsey said:   1 decade ago
Why is the answer C? Wouldn't points A and B have the same velocities since they are both on the outside edge of the wheel, so both have the same angular velocity and position radius?
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