PHYS201 Lecture Notes - Lecture 11: Acceleration, Angular Acceleration, Speed

• School: University of Delaware
• Department: Physics and Astronomy
• Course: PHYS201
• Professor: Gogoladze Ilia

Document Summary

Radian: a radian is the angle for which the arc length on a circle of radius r is equal to the radius of the circle, whenever using rotational equations, you must use angles expressed in radians. Sign convention for angular position: > 0 counterclockwise rotation from reference line, < 0 clockwise rotation from reference line. (cid:3049)= : w > 0 counterclockwise rotation, w < 0 clockwise rotation. The average angular acceleration, (cid:3049), of an object is defined as the ratio of the. The instantaneous angular acceleration is defined as the limit of the average angular change in the angular speed to the time it takes for the object to undergo the change acceleration as the time goes to 0. If the angular acceleration is constant: =(cid:2868)+ So , , all characterize the motion of the entire rigid object as well as the individual particles in the object.