Question

A mass m is revolving in a vertical circle at the end of a string of length 20 cms. By how much does the tension of the string at the lowest point exceed the tension at the topmost point

• A. 2 mg
• B. 4 mg
• C. 6 mg
• D. 8 m

Answer 1

Answer: (C)

6 mg

Answer 2

$T_{\text{Lowestpoint}} - T_{\text{Highestpoint}} = 6mg$ (Always)