1.

Two identical balls A and B each of mass 2kg and radius R, are suspended vertically from an inextensible strings as shown in fig. Third ball C of mass 1 kg and radius r = (sqrt(2) - 1)R falls and hits A and B symmetrically with 10m/s. Speed of both A and B just after the collision is 3m//s. The value of coefficient of restitution is

Answer»

`(1)/(4)`
`(1)/(SQRT(2))`
`sqrt(2)-1`
`(1)/(2)`

ANSWER :C


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