A particle (charge = 5.0 C) is released from rest at a point x = ...

[go.lag]

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

[Athena23]

Answer to Question 1

b

Answer to Question 2

d