PPT-Impulse and Momentum

Chapter 7 71 The ImpulseMomentum Theorem This section deals with timevarying forces affecting the motion of objects The effects of these forces will be discussed using the concepts of i mpulse and linear momentum. Introduction to Momentum. What is Momentum?. The quantity of motion of a moving body. Depends on mass and velocity. Measured by multiplying mass to the velocity. Vector. Measured in kg*m/s or N*s. How is momentum measured?. Physics 7. th. edition. Classroom Response System Questions. Chapter 7 Impulse and Momentum. Interactive Lecture Questions. . 7.1.1. An astronaut drops a golf ball that is initially at rest from a cliff on the surface of the moon. The ball falls freely under the influence of gravity. Which one of the following statements is true concerning the ball as it falls? Neglect any frictional effects.. - Class . 14. Today:. Momentum and Impulse. Conservation of Momentum. Collisions, Explosions. Pre-class Reading Quiz. (Chapter. 9). Last day I asked at the end of class:. Consider . a car accident in which a car, initially traveling at 50 km/hr, collides with a large, massive bridge support.. F = Δp/t. Δp = Ft. Impulse is defined as the force times the time over which the force acts. Impulse = Ft = Δp. In order to change the momentum of an object, two quantities are important (Force and time). You’re Quite Impulsive. A Review of What We Know About Motion. Chapters 2 & 3 introduced us to vectors such as displacement, velocity, and . acceleraton. No mass was included. Chapter 4 introduced forces and mass into the mix. s. Compare the inertia of a semi truck and a roller skate… . Will the truck always have more inertia than the roller skate? . Will it always have more momentum than the roller skate?. Warm-Up. Estimate the amount of work the engine performed on a 1200-kg car as it accelerated at 1.2 m/s. 9. Kinetics. 2. Projekt: Cizí . jazyky v . kinantropologii. - . CZ.1.07/2.2.00/15.0199. Daniel . Jandačka. , PhD.. Impulse of Force. Impulse of force . is the product of the resultant force . Σ. Momentum = Mass x Velocity. p. =. mv. The SI unit for momentum is . kg·m. /s. Momentum and velocity are in the same . direction. Is a vector. Using the equation. p=. mv. At the same velocity, as mass increases – momentum increases. Momentum = Mass x Velocity. p. =. mv. The SI unit for momentum is . kg·m. /s. Momentum and velocity are in the same . direction. Is a vector. Using the equation. p=. mv. At the same velocity, as mass increases – momentum increases. and . Collisions. Momentum. Impulse. Impulse-Momentum . theorem. Conservation of . linear momentum. Collisions. Momentum. , p. The linear momentum . p. of an object is the product of the object’s mass . … to change equilibrium states!. EXTENSION to ROTATIONS. Translation concepts:. Mass . Linear velocity. Linear momentum. Force. Impulse equation. Equivalent Rotation . concepts:. ??? (define it). ??? (define it). What factors affected how fast objects move after a collision? (Think of your lab). Section 1: Momentum and . Impulse. Linear Momentum:. Momentum is defined as . mass times velocity. .. Momentum is represented by the symbol p, and is a . by Zack Ridgway and Jeffrey Wan . Kinetic energy. Kinetic energy- energy of an object that it possesses due to its motion. . Common examples. A baseball thrown by a pitcher, although having a small mass, can have a large amount of kinetic energy due to its fast velocity.. Momentum. Measures how hard it is to stop a moving object.. Momentum can be defined as . "mass in motion.". . All objects have mass; so if an object is moving, then it has momentum - it has its mass in motion. .