- #1
GRDixon
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Two massive lead balls are sprayed with a thin veneer of positive charge. They are isolated and at rest in inertial frame K. The positive charge is such that the electrostatic force of repulsion exactly cancels the gravitational force of attraction. Viewed from frame K’, the Lorentz force on either ball will not equal the electrostatic force of repulsion in K. Yet each ball moves with a constant velocity in K’. Comments?