The starship Enterprise is chasing a Klingon Bird of Prey. The Enterprise's position function is
x
x
xE(t)=(500 km/s)t+(4.0 km/s2)t2xE(t)=(500 km/s),t+(4.0 km/s2),t2.
x
x
The Bird of Prey is initially 1400 km ahead of the Enterprise, moving at a constant velocity of 900 km/s.
x
x
The Klingons are initially outpacing the Enterprise, but at some point, the Enterprise begins to close the gap. At what time does the Enterprise start to gain on the Klingon ship?