Chapter 14.3, Problem 58E

Trajectory properties Find the time of flight, range, and maximum height of the following two-dimensional trajectories, assuming no forces other than gravity. In each case, the initial position is 〈0, 0〉 and the initial velocity is v₀ = 〈u₀, v₀〉.

54. 〈u₀, v₀〉 = 〈10, 20〉 ft/s