1pt A ball with mass (m) is dropped from a certain height. Which equality could be rearranged to find the velocity of the
ball after it has fallen through a certain distance?
A. (1/2) mv2 = mgah
B. (1/2) mv2 = (1/2) kx2
c. 1/2mv2= kq1q2/r
D. mgAh = (1/2)kx2