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# lecture+notes+16 - 14:440:222 Dynamics(Lecture Note#16...

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14:440:222 Dynamics (Lecture Note #16) Instructor: Prof. Peng Song Rutgers University

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The instantaneous center (IC) of zero velocity for this bicycle wheel is at the point in contact with ground. The velocity direction at any point on the rim is perpendicular to the line connecting the point to the IC. Which point on the wheel has the maximum velocity? Does a larger wheel mean the bike will go faster for the same rider effort in pedaling than a smaller wheel? Applications: IC of Zero Velocity
As the board slides down the wall (to the left), it is subjected to general plane motion (both translation and rotation). Since the directions of the velocities of ends A and B are known, the IC is located as shown. How can this result help you analyze other situations? What is the direction of the velocity of the center of gravity of the board? Applications: IC of Zero Velocity (cont’d)

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For any body undergoing planar motion, there always exists a point in the plane of motion at which the velocity is instantaneously zero (if it is rigidly connected to the body). This point is called the instantaneous center (IC) of zero
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## This document was uploaded on 10/31/2011 for the course ENG MECH 232 at Rutgers.

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lecture+notes+16 - 14:440:222 Dynamics(Lecture Note#16...

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