To throw a curve ball, a pitcher gives the ball an initial angular speed of 36.0 rad>s. Just before the catcher gloves the ball0.595 s later, its angular speed has decreased (due to air resistance) to 34.2 rad>s. (a) What is the ball’s angular acceleration, assuming it to be constant? (b) How many revolutions does the ball make before being caught?
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.
To throw a curve ball, a pitcher gives the ball an initial angular speed of 36.0 rad>s. Just before the catcher gloves the ball
0.595 s later, its angular speed has decreased (due to air resistance) to 34.2 rad>s. (a) What is the ball’s
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