Chapter 4 Motion in Two and Three Dimensions 第4章 二維與三維運動

Chapter 4 Motion in Two and Three Dimensions 4-1 What is Physics? 4-2 Position and Displacement 4-3 Average Velocity and Instantaneous Velocity 4-4 Average Acceleration and Instantaneous Acceleration 4-5 Projectile Motion 拋體運動 4-6 Projectile Motion Analyzed 4-7 Uniform Circular Motion 等速圓周運動 4-8 Relative Motion in One Dimension 4-9 Relative Motion in Two Dimensions

4-1 What is Physics? dogfight 空戰；纏鬥 sports engineer free throw 罰球 overhand push shot underhand loop shot

4-2 Position and Displacement position vector displacement

4-3 Average Velocity and Instantaneous Velocity

Sample Problem

4-4 Average Acceleration and Instantaneous Acceleration

Sample Problem

4-5 Projectile Motion 拋體運動

4-6 Projectile Motion Analyzed

4-7 Uniform Circular Motion 等速圓周運動 uniform speed = constant speed centripetal acceleration 向心加速度 revolution 繞轉、旋轉、迴轉 period of revolution period 周期（週期）

4-8 Relative Motion in One Dimension reference frame 參考坐標系

4-9 Relative Motion in Two Dimensions

Sample Problem 4-12