Central Net Force Test F. = G m. where G =6.67 *10 " Am: In each of the pairs of diagrams below, a sphere attached to a string is swung in a horizontal circle. Examine each diagram carefully to note which variable has been changed. "T" stands for period. mass = m mass = 1m A B T = 1s T= .55 1. How does the speed of A compare to that of B? A. A> B B. A