A Particle (Charge = 5 $\mu$ C)is Released from Rest at a Point X = 10

Multiple Choice

A particle (charge = 5.0 $\mu$ C) is released from rest at a point x = 10 cm.If a 5.0- $\mu$ C charge is held fixed at the origin,what is the kinetic energy of the particle after it has moved 90 cm?

A) 1.6 J
B) 2.0 J
C) 2.4 J
D) 1.2 J
E) 1.8 J