The period of a circular motion is given by
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Answer:
Motioning Characteristics of Objects Moving in Circles
The time for one revolution around the circle is referred to as the period and denoted by the symbol T. Thus the average speed of an object in circular motion is given by the expression 2•pi•R / T.
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Answer:
Explanation:
Uniform Circular Motion
Circular motion is the motion of a body following a circular path. Uniform circular motion is a specific type of circular motion in which the motion of a body following a circular path is at a constant speed. The body has a fixed central point and remains equidistant from it at any given position.
When an object goes around in a circle, the description of its motion becomes interesting in many ways. To better understand the circular motion let us look at an example.
Suppose you have a ball attached to a string and you move it constantly in a circular motion. Then we observe two things:
Uniform Circular Motion
The speed of the ball is constant. It traces a circle with a fixed center.
At every point of its motion, the ball changes its direction. Therefore, we can say that in order to stay on a circular path, the ball has to change its direction continuously.
From the second point, an important result follows. Newton’s first law of motion tells us that there can be no acceleration without a net force. So there must be a force associated with the circular motion. In other words, for the circular motion to take place a net force has to act on the object. Thus, the change in direction is a result of a centripetal force.
Centripetal force is the force acting on a body in a circular path. It points towards the center around which the body is moving.
As long as the ball is attached to the string, it will continue to follow the circular path. The moment the string breaks or you let go of the string, the centripetal force stops acting and the ball flies away.
hope you get it
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