Item 21 You are designing a rotating metal flywheel that will be used to store energy. The flywheel is to be a uniform disk with radius 29.0 cm. Starting from rest at t =0, the flywheel rotates with Part A constant angular acceleration 3.00 rad/s about an axis perpendicular to the flywheel at its center. If the flywheel has a density (mass per unit volume) of 8600 kg/m, what thickness must it have store 800 J of kinetic ener Express your answer with the appropriate units. HA h = Value Units Submit Request Answer Provide Feedback

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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.