An ice skater is executing a figure-eight, consisting of two identically shaped, tangent circular paths. Throughout the first loop, she increases her speed uniformly, and during the second loop she moves at a constant speed. When the ice skater travels during the first loop, the acceleration vector is not directed towards the center, whereas when the ice skater travels in the second loop, the acceleration vector is directed toward the center.
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.
An ice skater is executing a figure-eight, consisting of two identically shaped, tangent circular
paths. Throughout the first loop, she increases her speed uniformly, and during the second loop she
moves at a constant speed. When the ice skater travels during the first loop, the acceleration vector
is not directed towards the center, whereas when the ice skater travels in the second loop, the acceleration vector is directed toward the center.
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