The displacement, time, and direction
In order to develop this problem it is necessary to use the concepts related to the conservation of both potential cinematic as gravitational energy,


Where,
M = Mass of Earth
m = Mass of Object
v = Velocity
r = Radius
G = Gravitational universal constant
Our values are given as,



Replacing we have,




Therefore the speed of the object when striking the surface of earth is 4456 m/s