Circular Motion

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Circular motion 

refers to the movement of an object along the circumference of a circle. It involves a constant change in direction, even if the speed of the object remains constant, due to which the object experiences an inward force called centripetal force.

1. Centripetal acceleration 

2. Centripetal Force (Fc): The inward force required to keep an object moving in a circular path. This force acts towards the center of the circle.

   Formula:

   $$F_c = \frac{m v^2}{r}$$

   where:

   • m is the mass of the object,
   • v is the tangential velocity, and
   • r is the radius of the circle.​

Types of Circular Motion

1. Uniform Circular Motion (UCM): The motion of an object at a constant speed along a circular path. In UCM, the tangential velocity remains constant, but the direction of motion changes continuously.

2. Non-uniform Circular Motion: In this type of motion, both the speed and direction of the object change. Here, the object has both tangential and centripetal acceleration.

Example in Real Life:

1. Rotating Ferris Wheel: A person on a Ferris wheel experiences circular motion. The speed at which the wheel turns may be constant, but due to the circular path, the direction of the person's velocity is constantly changing, hence experiencing centripetal force.

2. Earth Orbiting the Sun: The Earth’s orbit around the Sun is an example of nearly uniform circular motion. The gravitational force acts as the centripetal force, keeping Earth in its orbit.

for further understanding please watch the video
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