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A bead is moving on a frictionless fixed...

A bead is moving on a frictionless fixed circular wire of radius 0.8 m in horizontal plane with constant speed & there is no interaction force between bead & wire & it is also connected with string & spring .

A

Speed of bead is 4m/sec

B

Elongation in spring is 10 cm

C

If we cut the string , normal force due to wire on bead is `20sqrt5N`.

D

If we cut the spring , normal force due to wire is `20sqrt5N`.

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The correct Answer is:
A,C,D
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