engineering physics MCQ #684

A 0.5 kg stone is tied to a string and rotated in a vertical circle of radius 1 m. What is the minimum speed at the highest point?

engineering physics MCQ #684

  1. Question 1

    Q1. A 0.5 kg stone is tied to a string and rotated in a vertical circle of radius 1 m. What is the minimum speed at the highest point?

    • A) √10 m/s
    • B) √5 m/s
    • C) √20 m/s
    • D) √15 m/s

    Answer: √10 m/s

    Explanation: Minimum speed (v) = √(gr) = √(10 * 1) = √10 m/s, using the formula v = √(gr) at the highest point.