Question: Two identical point charges (q= +7.20 x 10-6 C) are fixed at diagonally opposite corners of a square with sides of length 0.480m. A test charge (qo= -2.40 x 10-8 C), with a mass of 6.60 x 10-8 kg, is released from rest at one of the empty corners of the square.
Part A: Determine the speed of the test charge when it reaches the center of the square.
Show all work, use additional paper if necessary.