Chapter_10 - Rotational motion, Angular displacement,...

Info iconThis preview shows pages 1–6. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Rotational motion, Angular displacement, angular velocity, angular acceleration Rotational energy Moment of Inertia Torque Chapter 10:Rotation of a rigid object about a fixed axis Reading assignment: Chapter 10.1 to10.4, 10.5 (know concept of moment of inertia, dont worry about integral calculation), 10.6 to 10.9 Homework: CQ1, CQ8, CQ13, QQ3, QQ4, AE1, AE3, OQ8, 2, 3, 6, 7, 12, 13, 15, 19, 26, 29, 35, 36, 38, 43, 49, 55, 56, 59 Due date: Monday, March 28 Midterm 2 coming up on Wednesday, March 30; (chapter 1-10) Planar, rigid object rotating about origin O. Rotational motion Look at one point P: = r s Arc length s: Thus: r s = is measured in degrees or radians (SI unit: radian) Full circle has an angle of 2 radians. Thus, one radian is 360/2 = 5 7 .3 Radian degrees 2 360 180 /2 90 1 57.3 Define quantities for circular motion (note analogies to linear motion!!) Angular displacement: Average angular speed: Instantaneous angular speed: Average angular acceleration: Instantaneous angular acceleration: i f - = t t t i f i f =-- = dt d t t = = lim t t t i f i f =-- = dt d t t = = lim Angular velocity is a vector Right-hand rule for determining the direction of this vector. rotates through the same angle, has the same angular velocity, has the same angular acceleration. Every particle (of a rigid object): , , characterize rotational motion of entire object Linear motion with constant linear acceleration, a. t a v v x xi xf + = 2 2 1 t a t v x x x xi i f + + = ) ( 2 2 2 i f x xi xf x x a v v- + = t v v x x xf xi i f ) ( 2 1 + + = Rotational motion with constant rotational acceleration, ....
View Full Document

This document was uploaded on 02/29/2012.

Page1 / 26

Chapter_10 - Rotational motion, Angular displacement,...

This preview shows document pages 1 - 6. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online