PPT-Centripetal Acceleration

Physics Turning Turning counts as a form of acceleration because the direction of the velocity vector changes Turning requires a force that is perpendicular to the current motion of an object. Chapter 5. Kinematics of Uniform Circular motion. An object that moves in a circle at constant speed, v, is said to be under uniform circular motion. . The magnitude of velocity remains constant.. The direction of velocity changes continuously.. and . Centripetal Force. Acceleration. Speeding up. Slowing down. Changing direction. . Think of spinning an object on the end of a string. How would you describe it to someone?. The easiest thing to say is that it moves in the shape of a circle.. Circular motion. We will be looking at a special case of kinematics and dynamics of objects in uniform circular motion (constant speed). Cars on a circular track (or on a curved road). Roller coasters in loop. - Class 8. Today, finishing off Chapter 4:. Circular Motion. Rotation. Angular . Notation: it’s all Greek to me. !. θ. is an angle, and the S.I. unit of angle . is radians. (. NOT. degrees!). 5.1 . Uniform Circular Motion. DEFINITION OF UNIFORM CIRCULAR MOTION. Uniform circular motion is the motion of an object . traveling at a constant speed on a circular path.. 5.1 . Uniform Circular Motion. Equations:. Academic Vocabulary:. Centripetal force. Centripetal acceleration. Circular motion. Tangential velocity. Inverse square law. Gravitational constant. Universal gravitational force. Weightlessness. This one’s going to be quick. Uniform Circular Motion. Uniform Circular Motion = an object following a circular path AT CONSTANT SPEED.. Why can we not say “at constant velocity”?. Definition: . 5.3 Centripetal Force. From . Newton’s 2. nd. Law . we know that whenever an object accelerates, there must be a net force acting on the object to create the acceleration.. The net force causing centripetal acceleration is called . Uniform circular motion and Universal Gravitation. Centripetal Acceleration & Force. Centripetal Acceleration & Force. This unit we will investigate the special case of kinematics and dynamics of objects in . Calculate angular speed in radians per second.. Calculate linear speed from angular speed and vice-versa.. Describe and calculate centripetal forces and accelerations. .. Motion . in Circles. We say an object . 002. Lecture . #12. Wednesday. ,. Feb. 27, 2013. Dr. . Jae. hoon . Yu. Uniform Circular Motion. Centripetal Acceleration. Newton. ’. s . Law & Uniform Circular Motion . Example. Unbanked . and Banked . Uniform Circular motion. For an object moving on a circle at constant speed. The . speed is constant. , but the . direction is not. Acceleration is a change in velocity, but speed is constant. The change in velocity is only in its direction. Forces and Uniform Circular Motion Physics Unit 2 This Slideshow was developed to accompany the textbook OpenStax Physics Available for free at https:// openstaxcollege.org/textbooks/college-physics 1. a. What velocity must a car go around a 250. m radius corner to have a centripetal acceleration of 3.30 m/s/s? (28.7 m/s) b. A centrifuge generates a centripetal acceleration of 3450 m/s/s with a period of 0.0258 s. What is the radius of the centrifuge? (0.0582 m)