A disk with moment of inertia 7.3 kg m^2 spins at 19 rad/s about its center axis. If a brake exerts a perpendicular force of 80. N at 0.12 m from the axis, what is the magnitude of the angular acceleration?
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 disk with moment of inertia 7.3 kg m^2 spins at 19 rad/s about its center axis.
If a brake exerts a perpendicular force of 80. N at 0.12 m from the axis,
what is the magnitude of the
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