A mass of 2 kg is whirled in a horizontal circle by means of a string – McqOptions

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1.	A mass of 2 kg is whirled in a horizontal circle by means of a string at an initial speed of 5 revolutions per minute. Keeping the radius constant the tension in the string is doubled. The new speed is nearly [MP PMT/PET 1998; JIPMER 2000]
A.	14 rpm
B.	10 rpm
C.	2.25 rpm
D.	7 rpm
Answer» E.

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