17.81 A 1.8-kg collar A and a 0.7-kg collar B can slide without friction on a frame, consisting of the horizontal rod OE and the vertical rod CD, which is free to rotate about its vertical axis of symmetry. The two collars are connected by a cord running over a pulley that is attached to the frame at O. At the instant shown, the velocity v of collar A has a magnitude of 2.1 m/s and a stop prevents collar B from moving. The stop is suddenly re- moved and collar A moves toward E. As it reaches a distance of 0.12 m from O, the magnitude of its velocity is observed to be 2.5 m/s. Determine at that instant the magnitude of the angular velocity of the frame and the moment of inertia of the frame and pulley system about CD.

17.81 A 1.8-kg collar A and a 0.7-kg collar B can slide without friction on a frame, consisting of the horizontal rod OE and the vertical rod CD, which is free to rotate about its vertical axis of symmetry. The two collars are connected by a cord running over a pulley that is attached to the frame at O. At the instant shown, the velocity v of collar A has a magnitude of 2.1 m/s and a stop prevents collar B from moving. The stop is suddenly re- moved and collar A moves toward E. As it reaches a distance of 0.12 m from O, the magnitude of its velocity is observed to be 2.5 m/s. Determine at that instant the magnitude of the angular velocity of the frame and the moment of inertia of the frame and pulley system about CD.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Concept explainers

Power Transmission Elements

It is defined as the energy transfer from one location to another location. The energy will start moving from the energy generation source to the energy applied position to obtain the work output. From this method, a large amount of electric energy moves from the power station to various electrical substations.

Question

17.81 A 1.8-kg collar A and a 0.7-kg collar B can slide without friction
on a frame, consisting of the horizontal rod OE and the vertical rod CD,
which is free to rotate about its vertical axis of symmetry. The two collars are
connected by a cord running over a pulley that is attached to the frame at
O. At the instant shown, the velocity v of collar A has a magnitude of
2.1 m/s and a stop prevents collar B from moving. The stop is suddenly re-
moved and collar A moves toward E. As it reaches a distance of 0.12 m from
O, the magnitude of its velocity is observed to be 2.5 m/s. Determine at that
instant the magnitude of the angular velocity of the frame and the moment
of inertia of the frame and pulley system about CD.
Fig. P17.81
01m

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