engineering physics MCQ #671

A stone is tied to a string and whirled in a vertical circle. At the highest point, what is the minimum speed required?

engineering physics MCQ #671

  1. Question 1

    Q1. A stone is tied to a string and whirled in a vertical circle. At the highest point, what is the minimum speed required?

    • A) √(g * r)
    • B) √(2 * g * r)
    • C) √(3 * g * r)
    • D) √(4 * g * r)

    Answer: √(g * r)

    Explanation: The minimum speed is given by v = √(g * r), as the tension is zero at the highest point.