A mass on a string is swung in a vertical circle at a constant speed.The string will break if the tension in the string exceeds a critical value.At what part of the circle is the string most likely to break,and why?

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The Answer of A mass on a string is swung in a vertical circle at a constant speed.The string will break if the tension in the string exceeds a critical value.At what part of the circle is the string most likely to break,and why?

A Mass on a String Is Swung in a Vertical