An airplane is ready for takeoff. It's propeller starts at rest, but at time t = 0 it begins to rotate with a constant angular acceleration. It takes 2.3 seconds for the propeller to reach an angular velocity of 176 rad/s. a) What is the angular acceleration of the propeller? b) How many revolutions does the propeller undergo during the 2.3 seconds? c) If each arm of the propeller is 0.45 m long, then what is the speed of a point at the end of one of the arms (furthest from the center) at t = 2.3 s?

An airplane is ready for takeoff. It's propeller starts at rest, but at time t = 0 it begins to rotate with a constant angular acceleration. It takes 2.3 seconds for the propeller to reach an angular velocity of 176 rad/s. a) What is the angular acceleration of the propeller? b) How many revolutions does the propeller undergo during the 2.3 seconds? c) If each arm of the propeller is 0.45 m long, then what is the speed of a point at the end of one of the arms (furthest from the center) at t = 2.3 s?

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter10: Rotational Motion

Section: Chapter Questions

Problem 6P: Why is the following situation impossible? Starting from rest, a disk rotates around a fixed axis...

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A system consists of a disk of mass 2.0 kg and radius 50 cm upon which is mounted an annular cylinder of mass 1.0 kg with inner radius 20 cm and outer radius 30 cm (see below). The system rotates about an axis through the center of the disk and annular cylinder at 10 rev/s. (a) What is the moment of inertia of the system? (b) What is its rotational kinetic energy?
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