A disk (mass = 4.06 kg and radius 0.567 m) is rotating at 649.9 rpm. How much force (magnitude only) is required to stop the disk in 2.8 seconds if the force is applied at the edge of the disk?
Angular speed, acceleration and displacement
Angular acceleration is defined as the rate of change in angular velocity with respect to time. It has both magnitude and direction. So, it is a vector quantity.
Angular Position
Before diving into angular position, one should understand the basics of position and its importance along with usage in day-to-day life. When one talks of position, it’s always relative with respect to some other object. For example, position of earth with respect to sun, position of school with respect to house, etc. Angular position is the rotational analogue of linear position.
A disk (mass = 4.06 kg and radius 0.567 m) is rotating at 649.9 rpm. How much force (magnitude only) is required to stop the disk in 2.8 seconds if the force is applied at the edge of the disk?
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