remains constant
Uniform Circular Motion Speed Analysis
Uniform circular motion describes the movement of a body in a circular path at a constant speed. While the direction of the body's velocity vector changes continuously, the magnitude of this vector, which is the speed, remains unchanged.
Understanding the Options
- Option 1: Changes continuously - Incorrect. In uniform circular motion, the speed is constant. The velocity changes due to the changing direction.
- Option 2: Depends on the radius only - Incorrect. Speed in uniform circular motion is independent of the radius, although the angular velocity might relate to radius for a given tangential speed.
- Option 3: Remains constant - Correct. This is the defining characteristic of uniform circular motion regarding speed. The magnitude of velocity is constant.
- Option 4: Becomes zero at every point - Incorrect. If the speed were zero, the body would not be moving.
Conclusion
For a body undergoing uniform circular motion, its speed is constant by definition. The velocity vector changes direction but not magnitude.
Important Questions from Circular motion
A uniform motion of a car along a circular path experiences
A particle is moving in a circle with uniform speed. Which of the following quantities is constant?
A particle is moving in a circle with uniform speed. It has constant
The vehicle moving on a level circular path will exert pressure such that _____.
Which of the following statement is incorrect about a body undergoing a uniform circular motion?
