Constants Part A (Figure 1)A cannonball is fired horizontally from the top of a cliff. The cannon is at height H = 100 m above ground level, and the ball is fired with initial horizontal speed vo. Assume that the cannon is fired at time t = 0 and that the cannonball hits the ground at time to. What is the y position of the Assume acceleration due to gravity to be g = 9.80 m/s cannonball at the time tg/2? Answer numerically in units of meters. ? y(tg/2) = m