Circular Motion

Circular Motion

In our daily life, we observe some common examples of motion, the motion of an object along a straight line, curved path, to and fro and about a fixed point. The motion of the body along the straight line is called linear motion. The motion of the body about a fixed point is called rotational motion. In a similar way, the motion of the body along the circular path is called circular motion. The motion of an object or body along the circumference of a circle is called the circular motion.
E.g:
1. The motion of an electron around the nucleus.
2. The motion of the earth around the sun is approximately circular motion.
3. The vertical circular motion of the object.
4. The motion of the blades of a fan and motion of hands in a clock

Position vector or Radius vector:

"It is a vector drawn from the center of a circle to any position of a particle on the circumference of a circle."
   It is always directed away from a center of the circle. It's direction changes continuously from position to position. It is measured in a meter. The dimensions of a radius vector are [M° L Tº ].
   In this topic, we have to study the motion of an object along the circular path and its applications.

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