At a time t = 3.40 s, a point on the rim of a wheel with a radius of 0.180 m has a tangential speed of 45.0 m/s as the wheel slows down with a tangential acceleration of constant magnitude 10.6 m/s. Part A Calculate the wheel's constant angular acceleration. Express your answer in radians per second squared. a = rad/s² Part B Calculate the angular velocity at t = 3.40 s. Express your answer in radians per second. rad/s Part C Calculate the angular velocity at t=0. Express your answer in radians per second.

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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.