PPT-Chapter 3 Motion and Acceleration

32 32 Acceleration Think about a car at a stop light When the light turns green the car starts moving and the cars velocity increased The car began accelerating Acceleration is the change in velocity divided by the time it took the change to occur. 3. Applications of Newton’s Laws in 1 dimension. Free Fall. Motion in a Fluid. Spring motion. Molecular Dynamics. Free fall. Acceleration = g = 9.8 m/s. 2. = constant. Constant acceleration implies constant force = weight. 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, don’t worry about integral calculation), 10.6 to . Theories of motion. Aristotle was a Greek philosopher who lived in the 4. th. century BC.. Aristotle explained the behaviour of a falling body by saying that its speed depended on how much earth element it contained. . Kinematics (. الحركيات. ): . A . branch (. فرع. ,. شعبة. ) . of . mechanics (. علم الميكانيكا. ) . in which we study motion of an object without knowing its . cause (. سبب. Use the units of mass, length, and time.. Define displacement, velocity, and acceleration.. Use the units of displacement, velocity, and acceleration.. Measure velocity and acceleration.. Use distance-time and velocity-time graphs.. Equations of Motion for Constant Resultant Force. Also called ….. because………. …acceleration and resultant force are directly proportional. . s. uvat. equations. Also called ….. (unhelpfully). nd. Law of Motion. Newton’s 2. nd. Law of Motion:. . acceleration of an object is in the same direction as the net force on the object. Newton’s 2. nd. Law of Motion . connects . force. , . mass. 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. Sub units. Reference Frames and Displacement. Average Velocity. Instantaneous Velocity. Acceleration. Motion at Constant Acceleration. Solving Problems. Falling Objects. Graphical Analysis of Linear Motion. Material on Final Exam. Section 1: Measuring Motion. Objectives:. Describe the motion of an object by the position of the object in relation to a reference point. Identify the two factors that determine speed. 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.. Homework for Chapter 2. Read Chapter 2. HW 2.A : pp. 57-59: 8,9,12,13,16,17,20,26,34,35,38,39.. HW 2.B: pp. 60-61: 46,47,48,50,52, 58,59,61. ,70,71,72-75,80.. Learning Objectives for Chapter 2. Students will understand the general relationships among position, velocity, and acceleration for the motion of a particle along a straight line so that given a graph of one of the kinematics quantities, position, velocity, or acceleration, as a function of time, they can:. 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.