BIOM 121 1nd Edition Lecture 4 Outline of Last Lecture I. Constant Accelerationa. Equations for distance and velocityb. Horizontal accelerationc. Vertical accelerationII. Examplea. Sketch acceleration and velocity vectorsIII. Projectile Motiona. Horizontalb. VerticalIV. ExampleOutline of Current Lecture I. Relative Motiona. Reference Systemb. Inertial reference framc. Exampled. ExampleII. Circular MotionCurrent LectureI. Relative Motiona. Our coordinates form our reference system or reference frameb. Inertial reference frame is one in which Newton’s Laws of motion workc. Example:i. There is a plane flying to the right with a velocity of 200 m/s and an acceleration of 5 m/s2ii. There are three cars, car R traveling to the left with a velocity of 20 m/xs, car S traveling to the right with a velocity of 20 m/s, and car T traveling to the right with a velocity of 40 m/siii. Rank the plane’s speed according to each car from largest to smallest1. (Largest) R – S – T (Smallest)2. Plane’s speed to car R: 200 – (-20) = 220 m/s3. Plane’s speed to car S: 200 – (20) = 180 m/sThese notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.4. Plane’s speed to car T: 200 – (40) = 160 m/siv. Rank the plane’s acceleration according to each car1. All are the same for each car because the cars are at constant velocity and for each second the plane will seem to be going 5 m/sfasterd. Example:i. If Zack throws his physics book out a window as he is driving to the right down the street at the exact moment he is in front of a driveway, should he throw the book to the right of the driveway, to the left, or exactly at the driveway if he wants the book to land on the driveway?1. Throw to the left, because the cars forward velocity added to Zack’s velocity of throwing the book to the left will make the book land in the driveway.II. Circular Motiona. Uniform circular motion has an object moving around a circle of radius “r” with a constant speed “v”Zack’s CarVBook (from ground perspective)VBook (from Zack perspective)VZack (from ground
View Full Document
Unlocking...