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A pendulum consists of a bob of mass m=0...

A pendulum consists of a bob of mass `m=0.1`kg and a massless inextensible string of length `l=1.0m`. It is suspended from a fixed point at height `h=0.9m` above a frictionless horizontal floor. Initially, the bob of the pendulum is lying on the floor at rest vertically below the point of suspension. A horizontal impulse `P=02.kg-m//s` is imparted to the bob lifts off the floor. The magnitude of the angular momentum of the pendulum about the point of suspension just before the bob lifts off is J kg-`m^2//s`. The kinetic energy of the pendulum just after the lift-off js `K` Joules.
The value of `K` is ___

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