Which one of the following attributes is NOT true for uniform circular motion?
Answer & explanation
Correct answer: option 4
The correct answer is option 4. The distance is always equal to the displacement.
In uniform circular motion:
The speed of the body is constant
The velocity of the body keeps changing, because of change in direction
The direction of velocity is perpendicular to the radius of circle at any point.
Distance travelled keeps increasing
The magnitude of displacement oscillates between zero and half the circumference.
Clearly, distance is not equal to the displacement. When the object returns to its initial point, the displacement becomes zero, but distance is greater than zero.