A ring of radius 
is first rotated with an angular velocity 
and then carefully placed on a rough horizontal surface. The coefficient of friction between the surface and the ring is 
. Time after which its angular speed if reduced to half is
a)
b)
c)
d)
A ring of radius is first rotated with an angular velocity and then carefully placed on a rough horizontal surface. The coefficient of friction between the surface and the ring is . Time after which its angular speed if reduced to half is
a)
b)
c)
d)
Question ID - 53257 | SaraNextGen Top Answer
A ring of radius is first rotated with an angular velocity and then carefully placed on a rough horizontal surface. The coefficient of friction between the surface and the ring is . Time after which its angular speed if reduced to half is
a)
b)
c)
d)
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A ring of radius |
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d) |
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1 Answer
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