You have two cylinders, both of mass m and radius r.One cylinder is solid and the other is hollow. They areboth rotating with an angular speed of w. Which onehas the greater rotational kinetic energy?Solid CylinderÖHollow cylinderThey both have the same rotational kineticenergyNot enough information to be able to answerthisThe solid cylinderThe hollow cylinder

Given that they both are rotting with same angular speed ωand rotational kinetic energy is given…

You have two cylinders, both of mass m and radius r. One cylinder is solid and the other is hollow. They are both rotating with an angular speed of w. Which one has the greater rotational kinetic energy?

You have two cylinders, both of mass m and radius r. One cylinder is solid and the other is hollow. They are both rotating with an angular speed of w. Which one has the greater rotational kinetic energy?

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

Section10.4: Rotational Kinetic Energy

Problem 10.4QQ

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Concept explainers

Angular speed, acceleration and displacement

Angular acceleration is defined as the rate of change in angular velocity with respect to time. It has both magnitude and direction. So, it is a vector quantity.

Angular Position

Before diving into angular position, one should understand the basics of position and its importance along with usage in day-to-day life. When one talks of position, it’s always relative with respect to some other object. For example, position of earth with respect to sun, position of school with respect to house, etc. Angular position is the rotational analogue of linear position.

Question

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You have two cylinders, both of mass m and radius r.
One cylinder is solid and the other is hollow. They are
both rotating with an angular speed of w. Which one
has the greater rotational kinetic energy?
Solid Cylinder
Ö
Hollow cylinder
They both have the same rotational kinetic
energy
Not enough information to be able to answer
this
The solid cylinder
The hollow cylinder

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