Three identical bar magnets,each 2 cm long,are placed in a straight line on a frictionless surface with their ends equally spaced with 2 cm between ends.They are constrained so they cannot rotate,but they can slide along the straight line.The left magnet has its north pole nearest the north pole of the middle magnet,and the right magnet has its south pole toward the middle magnet's south pole.Once they are in place and released from rest,which of the following best describes the motion of the magnets?
A)The end magnets will move away from the center magnet.
B)The magnets will not move since they are equally spaced.
C)The magnets will snap together.
D)None of the above would happen.

Question

Quizplus · Accepted Answer

The end magnets will experience repulsive forces from the center magnet due to like poles facing each other (north-north and south-south), causing them to move away from the center magnet.

Three Identical Bar Magnets,each 2 Cm Long,are Placed in a Straight