flywheel with a diameter of 0.641 m is rotating at an angular speed of 278 rev/min. (a) What is the angular s dians per second? (b) What is the linear speed of a point on the rim of the flywheel? (c) What constant angul. volutions per minute-squared) will increase the wheel's angular speed to 583 rev/min in 139 s? (d) How mar heel make during that 139 s? a) Number i Units

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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.