A body moves in a circular path of radius 10 cm. If it completes two revolutions along the circular path, then the displacement of the body is

The correct answer is zero

Key Points

• For a body in circular motion, the displacement of the object is equal to the length of the shortest path between the final and the initial points. 
• If the body comes back to its original position, then the displacement of the body is zero.
• In this case, the body completes two revolutions along the circular path.
• Therefore, it returns to its initial position after completing one revolution. 
• Hence, the displacement of the body is zero.

Additional Information

Displacement:

• It is the shortest distance covered by a body in a definite direction.
• It is a vector quantity.
• It can be positive, Negative or Zero.
• The unit of displacement is a meter(m).