The engine of a model airplane must both spin a propellerand push air backward to propel the airplane forward. (a) Modelthe propeller as three 0.20-m-long thin rods of mass 0.040 kgeach, with the rotation axis at one end. What is the momentof inertia of the propeller?

The engine of a model airplane must both spin a propellerand push air backward to propel the airplane forward. (a) Modelthe propeller as three 0.20-m-long thin rods of mass 0.040 kgeach, with the rotation axis at one end. What is the momentof inertia of the propeller?

University Physics Volume 1

18th Edition

ISBN:9781938168277

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

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

Chapter11: Angular Momentum

Section: Chapter Questions

Problem 55P: A diver off the high board imparts an initial rotation with his body fully extended before going...

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Concept explainers

Torque

Torque is the rotational equivalent of linear force in physics and mechanics. Based on the course of study, it is also known as the moment of force, rotational force, or turning effect.

Question

The engine of a model airplane must both spin a propeller
and push air backward to propel the airplane forward. (a) Model
the propeller as three 0.20-m-long thin rods of mass 0.040 kg
each, with the rotation axis at one end. What is the moment
of inertia of the propeller?

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