ball on a string has a moment of inertia of 12.5 kg · m2. It experiences a torque of 5 m N. What is the angular acceleration of the ball? The ball starts from rest.What angular velocity does it have after 3.5 seconds? What angular momentum does the ball have after 3.5 sec
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 ball on a string has a moment of inertia of 12.5 kg · m2. It experiences a torque of 5 m N.
- What is the
angular acceleration of the ball? - The ball starts from rest.What
angular velocity does it have after 3.5 seconds? - What
angular momentum does the ball have after 3.5 seconds?
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