A particle, having a charge +5 ÎĽc, is initially at rest at the point x = 30 cm on the x axis. The particle begins to move due to the presence of a charge q that is kept fixed at the origin. Find the kinetic energy of the particle at the instant it has moved 15 cm from its initial position if (a) q =+15ÎĽc and (b) q = -15ÎĽc 3
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Option a is correct.
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