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.
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An ice skater spins slower when she stretches her arms out because of
A. conservation of energy
B. conservation of linear momentum
C. conservation of
angular momentum D. none of the given choices
Ice skater took their arms out to give their foot a direction to move in a particular direction.
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