A particle (charge = 5.0 C) is released from rest at a point x = 10 cm. If a 5.0-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
Question 2
A particle (charge 7.5 C) is released from rest at a point on the x axis, x = 10 cm. It begins to move due to the presence of a 2.0-C charge which remains fixed at the origin. What is the kinetic energy of the particle at the instant it passes the point x = 1.0 m?
a. 3.0 J
b. 1.8 J
c. 2.4 J
d. 1.2 J
e. 1.4 J
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