Answered: uppose you're an field engineer…

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 36P: The angular position of a rod varies as 20.0t2radians from time t=0 . The rod has two beads on it as...

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Suppose you're an field engineer inspecting an offshore wind turbine. You're in a boat approaching a the particular turbine you'll be inspecting. Your boat's velocity is a constant 8 knots on a course perpendicular to the turbine's axis of rotation. The turbine blades are 10 m in length and turning with a constant angular velocity of 20 rad/s. What additional information would you need in order to calculate the velocity of a point on the turbine blade tip relative to you?

nothing, you have all the information you need

turbine angular acceleration

position of the blade tip relative to the turbine's rotation center at the time of measurement

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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