Competitive Exam Trainer Practice or CET Practice aspires to be a personal subject, preparation and answering technique trainer for students appearing for competitive examinations.
Saturday, January 10, 2015
A mass is whirled in a circular path with a constant angular velocity and its angular momentum is L. If the string is now halved keeping the angular velocity the same , the angular momentum is : A)L/4 B)L/2 C)L D)2L
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