A wheel starts from rest and rotates with constant angular acceleration to reach an angular speed of 12.0 rad/s in 3.00 s. Find (a) the magnitude of the angular acceleration of the wheel and Answer 4.00 rad/s^2 (b) the angle in radi-ans through which it rotates in this time interval. Answer 18.0 rad
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 wheel starts from rest and rotates with constant
(a) the magnitude of the angular acceleration of the wheel and
Answer 4.00 rad/s^2
(b) the angle in radi-ans through which it rotates in this time interval.
Answer 18.0 rad
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