What must projection speed be for p to escape to infinity

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Reference no: EM131384021

An earthed conducting sphere of radius a is fixed in space, and a particle P, of mass m and charge q, can move freely outside the sphere. Initially P is a distance b ( > a) from the centre O of the sphere when it is projected directly away from O.

What must the projection speed be for P to escape to infinity? [Ignore electrodynamic effects. Use the method of images to solve the electrostatic problem.]

Reference no: EM131384021

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