Angular Kinematics

So, what does the virtual lab illustrate about the relationship between Linear Kinematics and Angular Kinematics?

Angular displacement is defined as

• Sum of all angles traversed from initial to final position

• Equal to the magnitude or angle between initial and final positions

• Is not real

• Is the linear path taken

True or false: A clockwise angular displacement will be a positive value?

• True

• False

Angular velocity is equal to

• Angular distance/ Time

• Angular displacement/ Time

• Speed/time

• Inverse of acceleration

A flywheel starts from rest, and has an angular acceleration of 4 rad/s². What will be its angular speed when it has made one revolution?

• 5.01 rad/s

• 50.27 rad/s

• 2.83 rad/s

• 7.09 rad/s

What is the average angular velocity in radians if a paint spot on a tire turns from 57.3 degrees to 282 degrees in 0.5 sec?

• 25668 rad/s

• 7.8 rad/s

• 449 rad/s

• 1.95 rad/s

Looking at the picture, which way will it rotate?

• Clockwise

• Counter clockwise

• Neither

Which point has a greater angular displacement?

• A

• B

• They are the same

• Need more information

Which point has a greater angular velocity?

• A

• B

• They are the same

• Need more information

What is the formula for angular acceleration in terms of angular velocity and time?