two charged balls are connected by an inextensible thread of length 3 M masses of balls are 2 kg and - Physics - Electrostatic Potential And Capacitance

Question

two charged balls are connected by an inextensible thread of length
3 M masses of balls are 2 kg and 1 kg the charges are + 20 coulomb
and -100 coulomb what minimum constant external force f must be
applied to the ball of mass 1 kg so that the thread does not slack?

Shameem Pk · Accepted Answer

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two charged balls are connected by an inextensible thread of length 3 M masses of balls are 2 kg and 1 kg the charges are + 20 coulomb and -100 coulomb what minimum constant external force f must be applied to the ball of mass 1 kg so that the thread does not slack?