Henry is standing on a bridge over a creek. if he could throw a stone straight up into the air with a velocity of 50 feet per second, could the stone reach a height of 60 feet above the creek? he is 20 feet from the water

Balance the energy=
K.E.=P.E(at the max height)
1/2mv^2=mgh
m cancels out,
or, h=1/2v^2/g
or, h=1/2*50*50/32
or, h=39 ft (approx.)
As he is 20 ft above water so total height the stone an reach 39+20=59 ft.
Hence, it can't reach 60 ft over the creek.

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