A wheel with radius 0.33 m and rotational inertia 2.0 kg m2 spins on an axle with an initial angular speed of 3.0 rad/s. Friction in the axle exerts a torque on the wheel, causing the wheel to stop after 6.0 s. The average torque exerted on the wheel as it slows down has magnitude
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 with radius 0.33 m and rotational inertia 2.0
kg m2 spins on an axle with an initial angular speed of
3.0 rad/s. Friction in the axle exerts a torque on the
wheel, causing the wheel to stop after 6.0 s. The
average torque exerted on the wheel as it slows down
has magnitude
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