If suppose you jump up and stay for 50 min up on the air after you drop on the earth where will you be?

You'll be disappointed when you land cause you'll be right where you started! For an analogy think about being in an airplane going in a straight line at 500mph. If you were standing in the cockpit and jumped up would you end up at the back of the plane? Nope because you're moving at the same rate relative to that of the airplane, therefore you'll end up where you started. The same goes for jumping into the air off the earth. Before you jump you are moving at the same rate the earth is rotating. And barring something (like a wind) opposing your motion you'll land right back in the same place you stated!