What is the Angular Displacement and Velocity?
What is the angular displacement of the wheel between t=5 s and t=15 s?
What is the angular velocity of the wheel at 15 s?
Judging from the graph,
t = 5 s is 100 rad
t = 15 s is 125 rad
Angular Displacement = 125 – 100 ( vector quantity)
Clockwise 50 and anticlockwise 25 so net displacement
= clockwise 25 rad
Angular velocity = slope of angular displacement vs time curve
angular velocity is a straight line at
t = 15 s
w = (150 -100)/10
= 5 rad/s