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A particle is moving in an isolated `x-y` plane. At an instant, the particle has velocity `(4hati+4hatj)m//s` and acceleration `(3hati+5hatj)m//s^(2)`. At that instant what will be the radius of curvature of its path ?

A

`16sqrt(2) m`

B

`15 m`

C

`18 m`

D

None of these

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