A UFO is currently 500m away from the surface of the earth. At this moment it has a velocity of 50 m/s away from the earth and a constant acceleration of 100 m/s away from the earth. What is the velocity of the UFO in 10 seconds? How far is the UFO from the surface of the earth in 10 seconds?
In 10 seconds the UFO will have the velocity of
V = 50[m/s] + 100[m/s²]*10[s] = 1050 m/s.
The UFO will be
L = 500[m] + 50[m/s]*10[s] + 100[m/s²]*(10[s])²/2 = 6000 m