An artificial satellite is revolving round the Earth in a circular orbit, its velocity is half the eacape velocity. Its height from the Earth surface is......... km.

An artificial satellite is revolving round the Earth in a circular orb

1.	An artificial satellite is revolving round the Earth in a circular orbit, its velocity is half the eacape velocity. Its height from the Earth surface is......... km.
Answer» 6400 12800 3200 1600 Solution :`V = sqrt((GM)/(R+h)) =1/2 sqrt((2GM)/R) RARR h = R= 6400 R `