ball go up tu hite such that if yu dropped it from that hite,
it hit ground with speed=60 ft/sek
gravity accel=g=32.2 ft/sek^2
speed=g*time=60=32.2t
t=60/32.2=1.8633540 sekonds
distans=intgral av speed=(1/2)gt^2
D=(32.2/2)*1.8633540^2
=16.1*3.472088
=55.901 ft