Question

A particle, having a charge +5 c, is initially at rest at the point x = 30 cm on the x axis. Theparticle 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 =+15c and (b) q = -15c

Answer 1

a) 5/6 × 10^-7 J

b) 5/2 × 10^-7 J