CHAPTER 11. Rotation 11. 1 병진 운동과 회전 운동 11. 10 일과 회전 운동 에너지 11. 2 회전 변수 11. 3 각 관련 성분은 벡터인가? 11. 4 등각가속도 회전 운동 11. 5 선 변수와 각 변수의 관계 11. 6 회전 운동 에너지 11. 7 회전 강체의 계산 11. 8 토크 11. 9 회전 운동에 관한 뉴턴의 제 2법칙
11-1 Translation and Rotation 11-2 Rotational Variables 회전축 (Rotation Axis) 각위치 (Angular Position) (radian measure) s : arc distance, r : radius
Angular Displacement (각변위) : Angular Velocity (각속도) 평균 각속도 : 순간 각속도 : Angular Acceleration (각가속도) 평균 각가속도 : 순간 각가속도 :
11-3 Are Angular Quantities Vectors?
11-4 Rotation with Constant Angular Acceleration Table 11-1
11-5 Relating the Linear and Angular Variables Position Velocity Period (radian measure) (r = const.)
(tangential component) Acceleration (r = const.) (tangential component) (radial component)
11-6 Kinetic Energy of Rotation Rotating body : collection of particles with different speeds : i 번째 입자의 질량 : i 번째 입자의 속력 : Moment of Inertia (Rotational Inertia)
11-7 Calculating the Rotational Inertia (입자계) (강체) Parallel Axis Theorem (평행축 정리)
Parallel Axis Theorem (평행축 정리)
11-8 토크 (Torque)
11-9 Newton’s Second Law for Rotation More than one force :
예 11-7 Find a, α and T.
Judo hip throw : Find F for (a) and (b). 예 11-8 Judo hip throw : Find F for (a) and (b). (a) (b)
11-10 Work and Rotational Kinetic Energy Rotational Work
Rotational Power (회전일률) Table 11-3
Find (a) I in terms of m and R, and (b) ω when inverted. 예 11-10 Find (a) I in terms of m and R, and (b) ω when inverted. (a) (b)