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A disc of radius R(=10m) rolls on a hor...

A disc of radius R(=10m) rolls on a horizontal surface with linear velocity `vhat i(v=4m/s)` and angular velocity `omega(-hat k)(omega=2`rad/sec`)`. There is a particle P on the circumference of the disc which has velocity in vertical direction.Find the height of that particle from the ground in meter.

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