Answer to Question #15180 in Mechanics | Relativity for Bill

Question

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?

Answer 1

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

away from the surface of the earth in 10 seconds.