Tardigrade
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Tardigrade
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Physics
A stone of mass m tied to a string of length l is rotating along a circular path with constant speed v . The torque on the stone is:
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Q. A stone of mass $ m $ tied to a string of length $ l $ is rotating along a circular path with constant speed $ v $ . The torque on the stone is:
KEAM
KEAM 2006
A
$ mlv $
B
$ \frac{mv}{l} $
C
$ \frac{m{{v}^{2}}}{l} $
D
$ m{{v}^{2}}l $
E
zero
Solution:
Torque acting on a body in circular motion is zero.