Define uniform circular motion . Is it an accelerated motion ? If yes, what is the direction of acceleration ? write the formula for velocity of an object moving in a a circular path of radius r . which force is responsible for circular motion of a body ? Give an example of that force.
Answers
Answer:
Explanation:
The movement of a body following a circular path is called a circular motion. Now, the motion of a body moving with constant speed along a circular path is called Uniform Circular Motion. Here, the speed is constant but the velocity changes.
An object undergoing uniform circular motion does not accelerate. Why some people say it's true: In uniform circular motion, speed remains constant. The direction of its acceleration is directed toward the center of its circular path.
The acceleration (a) of an object which is moving in a circle is dependent upon the speed (v) at which it moves and the radius (R) of the circular path about which it moves. The relationship is expressed by the following equation a = v^2 / r.
Centripetal force is the name given to any force which causes a change in direction of velocity toward the center of the circular motion. The component of the force which is perpendicular to the velocity is the part resulting in the centripetal force. . The force of gravity acting on a satellite in orbit is an example of a centripetal force; the friction of the tires of a car making a turn similarly provides centripetal force on the car.
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