The angular velocity of a wheel increases from 10 to 30 rad/s in 5s when a constant torque 5Nm is applied. Assume constant angular acceleration. Calculate a) angular acceleration of the wheel; b)the rotational inertia of the wheel; c)initial and d)final angular momentum of the wheel. Hint: angular momentum of a rigid body is L= Iω.
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.
The
constant
c)initial and d)final
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