When a stone is whirled in a horizontal circle by means of a string, the centripetal force is supplied by:
Correct answer: C. Tension in the string
- A. Velocity of the stone
- B. Mass of the stone
- C. Tension in the string
- D. Air friction
Explanation
When an object moves in a circular path, it experiences a centripetal force directed towards the center of the circle, necessary to maintain the circular motion without flying off tangentially. In this scenario, when a stone is whirled in a horizontal circle by a string, the tension in the string provides the centripetal force required. This tension is crucial in preventing the stone from moving in a straight line and ensuring its circular motion. The other options, velocity, mass, and air friction, do not contribute to the centripetal force directly and are thus incorrect choices.
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