The ball is kicked straight up in the air from 4' off the ground
Original velocity is 60' per second
How many secs does it take to hit the ground.
Do I use complete the square, square root property, quadratic formula, factoring?
formula is h= 16tsquared + 60t +4
just solve it like any quadratic. When it hits the ground, h=0, so
4 + 60t - 16t^2 = 0
t=3.8 sec
this doesn't factor easily, so the quadratic formula is probably best.
However, while you're doing that, the kicker has probably scored a goal!