A rock is thrown horizontally from a bridge with a speed of 26.6 m/s. If the rock is 27.1 meters above the river at the moment of release, find how long the rock is in the air.

Also

Find the horizontal distance to the point of impact from the point of release.
Find the speed with which the rock strikes the river.

(a) 27.1 - 4.9t^2 = 0

using that value of t,
(b) 26.6t
(c) √(26.6^2 + (9.81t)^2)