Linear motion
Angular motion
Power by Torque
Formulas
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Linear motion |
Angular motion |
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Power by Torque |
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An angle of 1 radian is defined to be the angle, in the counterclockwise direction, at the center of a unit circle which spans an arc of length 1. |
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Angular displacement is
defined as “the
angle in radians (degrees, revolutions) through which a point or line
has been rotated in a specified sense about a specified axis”.
It is the angle of the movement of a body in a circular path
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Angular velocity is the vector measure of the rotation rate, which refers to how fast an object rotates or revolves relative to another point. In simple words, angular velocity is the time rate at which an object rotates or revolves about an axis. |
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The
angular acceleration is the time rate of change of the angular
velocity and is usually designated by α and expressed in radians per
second per second. |
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Linear vs. Angular Motion. Any
complex motion of a body can be broken down to two simple motions:
linear motion and angular motion. Linear motion is translation from one
position to another while angular motion is rotation about an axis or
centre of rotation. |
