An egg is thrown nearly vertically upward from a point near the cornice of a tall building. It just misses the cornice on the way down and passes a point a distance 34.0 m below its starting point at a time 5.00 s after it leaves the thrower's hand. Air resistance may be ignored.

Answer 1

t = time to peak

1/2 g t^2 + 34 = 1/2 g (5 - t)^2

g t^2 + 68 = g (25 - 10t + t^2)

68 = g (25 - 10t)

thrown velocity = g t