'Radial acceleration' diaporamas de présentation

Chapter Seven

Chapter Seven. Rotational Motion. Rotational Motion. A roulette wheel simply rotates, whereas a car wheel both rotates and translates. Newton's laws and momentum and energy conservation still apply, but the formulation is somewhat different. Measurement of Rotation.

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Lecture 10

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Lecture 10

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Devil physics The baddest class on campus Pre-IB Physics

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Lecture 5

Lecture 5. Goals: Address systems with multiple accelerations in 2-dimensions (including linear, projectile and circular motion) Discern different reference frames and understand how they relate to particle motion in stationary and moving frames

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Lecture 5

Lecture 5. Goals: (finish Ch. 4) Address 2D motion in systems with acceleration (includes linear, projectile and circular motion) Discern differing reference frames and understand how they relate to particle motion. Trajectory with constant acceleration along the vertical. Special Case:

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CHAPTER 6 CIRCULAR MOTION AND GRAVITATION

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Physics 207, Lecture 8, Oct. 1

Physics 207, Lecture 8, Oct. 1. Agenda:. Chapter 7 (Circular Motion, Dynamics III ) Uniform and non-uniform circular motion Next time: Problem Solving and Review for MidTerm I. Assignment: (NOTE special time!) MP Problem Set 4 due Oct. 3,Wednesday, 4 PM

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Lecture 6

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Uniform Circular Motion

Uniform Circular Motion . Chapter 4 AP Physics C: Mechanics Mrs. Warren. Uniform Circular Motion. Uniform circular motion is the motion of an object traveling at a constant (uniform) speed in a circular path .

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Uniform Circular Motion

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Dynamics of Uniform Circular Motion

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Angular Kinematics Objectives

Angular Kinematics Objectives. Distinguish angular motion from rectilinear and curvilinear motion Review how segment and joint angles are measured Discuss the relationship among angular displacement, angular velocity, and angular acceleration

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Angular Kinematics Objectives

Angular Kinematics Objectives. Distinguish angular motion from rectilinear and curvilinear motion Explain how segment and joint angles are measured Discuss the relationship among angular displacement, angular velocity, and angular acceleration

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Approximately how far has the wheel on the right rotated between points A and B ?

A bicycle wheel rotates through four complete revolutions in 2 seconds. What is its average angular velocity? (a) 2 radians/s (b) 2 B radians/s (c) 4 B radians/s (d) 4 B radians.

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Circular Motion: Angular Variables

Circular Motion: Angular Variables. Arc Length:. The arc length s is related to the angle q (in radians = rad) as follows :. (360 o = 2 p rad). Angular Displacement and Angular Velocity:. (radians/second). Tangential Velocity and Angular Velocity:. Tangential Velocity.

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Change in speed; parallel to v

Change in direction; perpendicular to v. Change in speed; parallel to v. Graphically: Imagine an object moving along the following trajectory at constant speed. Take the positions at times t and ? t and find the average acceleration between them:.

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Uniform Circular Motion

Uniform Circular Motion. Deriving a R = v 2 /r Where a R is radial acceleration (Due to change in direction.). Uniform Circular Motion. Means that an object is moving in a circle at a c onstant speed. Thus the magnitude remains constant but the direction is always changing.

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y 1 y 2 x 1 x 2

Y. v 1 v 2. motion path described by the particle on 2D. R 1. j = (0,1). R 2. y 1 y 2 x 1 x 2. i = (1,0). X. Using Cartesian Coordinates to Describe 2D Motion. P 1 P 2. R = x i + y j = ( x , 0) + (0, y ) = ( x , y ).

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