A particle of mass 0.002 kg and a charge 1μC is held at rest on a frictionless horizontal surface at a distance of 1m from a fixed charge of 1mC. If the particle is released, it will be repelled. The speed of the particle when it is at a distance of 10m from the fixed charge is -
(A) 60 ms–1
(B) 75 ms–1
(C) 90 ms–1
(D) 100 ms–1
