PPT-Review: motion with constant acceleration

a 0 case no acceleration velocity is constant v v i position vs time x f x i v t x i is the starting position acceleration a constant. Motion at Constant Acceleration . Giancoli. , Sec 2- 5, 6, 8. © 2006, B.J. . Lieb. t (s) . v ( m/s). a ( m/ s. 2. ) . 0. 0. 15. 1. 15. 15. 2. 30. 15. 3. 45. 15. 4. 60. 15. 5. 75. 15. Example 3-1. Consider . High Low. Thermally Driven Direct Circulation. Low High. Vertical and horizontal motion. Equation of Motion a . = . d. V. /. dt. = . G. + . P. z. . +. . P. n. . + . C . + . Kinematics (. الحركيات. ): . A . branch (. فرع. ,. شعبة. ) . of . mechanics (. علم الميكانيكا. ) . in which we study motion of an object without knowing its . cause (. سبب. Physics. How to interpret a . Position. vs. time Graph. Low on the graph. .. High on the graph. .. Slopes uphill.. Slopes downhill.. 0. x. t. Near. Far. Away. Toward. How to interpret a . Position. vs. time Graph. a = 0 case. no acceleration  velocity is constant  v = v. i. position vs. time  . x. f. = x . i. + v t,. x. i. is the starting . position, . x. f. is the ending position. acceleration = a = constant. Equations of Motion for Constant Resultant Force. Also called ….. because………. …acceleration and resultant force are directly proportional. . s. uvat. equations. Also called ….. (unhelpfully). AP Physics. Chapter 2. Describing Motion: Kinematics in One Dimension. AP Physics. Section 2-1 Reference Frames and Displacement. Describing Motion: Kinematics in One Dimension. IA1a - . . Students should understand the general relationships among position, velocity, and acceleration for the motion of a particle along a straight line . Chapter Goal: To extend the description of motion in one dimension to include changes in velocity. This type of motion is called . acceleration. .. © 2015 Pearson Education, Inc. . Chapter 3: Acceleration. Describe the speedometer on a car that is entering a highway, drives for 25 miles and then exits the highway.. Consider the two situations below. When a shuttle bus approaches a stop, the driver begins to apply the brakes to slow down 5.0 s before actually reaching the stop. The speed changes from 9.0 m/s to 0 m/s over time.. Separation of motion in x-and y-direction . Equations for 2-d kinematics at constant acceleration. Projectile motion. Lecture 4: Motion in two dimensions. Velocity. , . .  . Position vector . . Motion. Speed & Velocity. Acceleration. Newton’s First Law. Newton’s First Law of Motion. An object at rest will remain at rest and an object in motion will continue moving at a constant velocity unless acted upon by a net force.. V. ector quantity: . magnitude (value) & direction. R. ate . at which an object changes its velocity. . “. How fast an object is getting faster”. If the velocity of an object is changing, it is accelerating!. Motion in Two Dimensions. Using + or – signs is not always sufficient to fully describe motion in more than one dimension. Vectors can be used to more fully describe motion. Still interested in displacement, velocity, and acceleration. Describing motion is occasionally difficult to do with words. Graphs can help simplify this description greatly. Position = Distance from a starting point. Velocity = rate of change in position. Acceleration = rate of change in velocity.