Answered: A thin uniform rod AB of length L and…

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter10: Fixed-axis Rotation

Section: Chapter Questions

Problem 103P: A uniform rod of length L and mass M is held vertically with one end resting on the floor as shown...

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A thin uniform rod AB of length L and mass m is nailed to a wall through point C, which lies on the rod at the distance L/4 from point A. Assume that the rod rotates frictionlessly about the nail. Initially the rod is kept horizontal,and it is then released

(a) Find the angular acceleration of the rod right after it has been released

(b) find the total kinetic energy of the rod at the moment when it was vertical

Definition Definition Rate of change of angular velocity. Angular acceleration indicates how fast the angular velocity changes over time. It is a vector quantity and has both magnitude and direction. Magnitude is represented by the length of the vector and direction is represented by the right-hand thumb rule. An angular acceleration vector will be always perpendicular to the plane of rotation. Angular acceleration is generally denoted by the Greek letter α and its SI unit is rad/s 2 .

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