PHYS 1070 Lecture Notes - Lecture 11: Angular Acceleration, M60 Patton, Tom Cruise

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15 May 2018
Department
Course
Professor
Physics 111
Student Lecture Note 11a, 11b, 11c
Side 1 of 11
Introduction to Angular Velocity, Acceleration and
Circular Motion
Lecture Content Overview
Optimize your lecture and learning experience by reviewing any associated textbook topics before class
Concept/Topic/Title/Terms
Task to be able to perform
Radians
Convert from degrees to radians and back
Angular Displacement
Angular Velocity
Angular Acceleration
Use Linear Kinematics as an Analogy to help you
solve problems involving Angular Kinematics
Centripetal Acceleration
Centripetal Force
Determine the Centripetal Acceleration and
Centripetal Force on a Mass
o Maximum Speed of
Car on a circular curve Friction
Ball on a string Tension
o Speed of a Satellite Gravity
o Mass of a Planet? Or the Sun? Or a Star?!
Defining the Radian
Arc Length, Radius, and Angle
The Radian
Converting
Angular Displacement
A car travels 75 along a circular expressway ramp of radius 5 . Determine the
car’s agular displaceet.
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Physics 111
Side 2 of 11
Later
Comparing Two Isomorphic Worlds
Linear World
Rotational World
Important Rotational Variable Names
Kinematics Equations for
Constant Angular Acceleration
Constant Linear Acceleration
Rotational Motion About a Fixed Axis
Linear Motion
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Physics 111
Side 3 of 11
Rotational Motion: Problem-Solving
A wheel rotating at 200 rpm accelerates at a constant rate to 500 rpm in 20 s.
Q1. What is the angular acceleration of the wheel?
Q2. How many rotations does the wheel experience in the first 20. s?
Rotational Mechanics for a Point Ob ject
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