A mass m is revolving in a vertical circle at the end of a string of length 20 cm. By how…
Physics · JEE Main · NTA Exams — Rotational Motion
A mass m is revolving in a vertical circle at the end of a string of length 20 cm. By how much does the tension of the string at the lowest point exceed the tension at the top most point?
- 2 mg
- 4 mg
- 6 mg
- 8 mg
Answer
(C) 6 mg
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