We introduced the is used to denote physical quantities measured with respect to an angle, especially those quantities associated with rotation.angular
To understand how flywheel, represented in the illustration as A. When the flywheel is at rest, point A is in the 12 o’clock position, and as it spins A travels clockwise in a circular path. An angle, θ, is formed as A’s position follows along with the rotation of the flywheel. The angle increases in size as A travels further from its starting point. If A moves one complete revolution, θ will equal 360 degrees, or the total number of degrees present in a circle. As the A travels within a given time period. If we measure the flywheel’s rotational speed with a tachometer and find it takes one second to make 50 revolutions, point A will have traveled the circumference of its path fifty times, and A’s would be calculated as,angular velocity
Next time we’ll introduce a unit of measurement known as radians which is uniquely used to measuring the angles of circular motion. Copyright 2017 – Philip J. O’Keefe, PE Engineering Expert Witness Blog ____________________________________ |