A body is moving in a circle at constant speed. Which statement is true?
Correct answer: A. The resultant force acts towards the centre of the circle
- A. The resultant force acts towards the centre of the circle
- B. There is no resultant force
- C. The resultant force acts away from the centre of the circle
- D. None of these
Explanation
If a moving object has no forces acting on it, it will continue to move in a straight line at constant velocity. So, if an object is moving in a circle, or along the arc of a circle, it follows that there must be a force acting on it to change its direction. In order for the object to move on a circular path, the force must always be acting toward the center of the circle. When we turn around a corner or around an arc using a motorcycle, car,s, etc; we compel the body to move in such motion. The force which compels the body to move in a circle is called center-seeking force or centripetal force. Hence, A is the correct option.
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