Questions
A body tied with string of length l and rotates in a vertical circle. If the maximum tension is two times the minimum tension then the minimum speed of the body is __
a
7gl
b
5gl
c
3gl
d
6gl
detailed solution
Correct option is A
Tmax = 2TminTmax−Tmin = 6mg2Tmin− Tmin = 6mgTmin = 6mgmv2l −mg= 6 mg mv2l = 7 mg V = 7glTalk to our academic expert!
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