1.

A long steel wire of length 'L' is suspended from the ceiling of a room. A sphere of mass 'm' and radius 'r' is attached to the lower end of the wire. The height of the ceiling is (L+2r^1+1) . When the sphere is made to oscillate as a pendulum, its lowest point just touches the floor. The velocity of the sphere at the lowest point will be (L > > r^1 , 1 and r is the radius of the wire)

Answer»

`SQRT((pi r^2 ye)/(m) - Lg)`
`sqrt((pir^2y)/(me)- Lg)`
`sqrt((YPI r^2 e)/(m))`
NONE

Answer :A


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