Satellite science help!?

[Jose]

1.Some satellites move around the Earth in polar orbits,that is, in a north to south direction, rather than west to east. Can scientists who want to put a satellite into a polar orbit take advantage of Earth's rotation to give the rocket a "boost"?Explain.

2.Imagine you wanted to launch a satellite so that it traveled in the opposite direction from usual, that is east to west, rather than west to east. How fast would the rocket launching that satellite have to travel, relative to the launch site, if you launched it form a point on the equator?Explain.

3.What would be the effect on satellites now in orbit if Earth were to stop rotating?

I don't honestly want a lecture on doing my own work. I did the other problems and I can't find the answer to these.

Other important info:To escape Earth's velocity it (rocket) needs to travel at 19200 km/hr.
Cape Canavel in Florida, where many satellites are launched is traveling about 1,500 km/hr.

A point on the equator rotates at a speed of 1,700 km/hr

I would really appreciate help.
Thanks your a life saver.

[Confused]

Yes, it doesnt matter with the orbit because what you are gaining from the earths rotation is the centrupetal force. The force is greater in the equator because of its larger diameter size of the earth. This is essence helps to give the satellite an extra boost because the centripetal force is greater and hence and greater push. I think....lol.

2. Mhhh...thats a tough one. Twice as fast?

3. IF earth would stop rotating, then the satellites would just simply drifts off or is raised to another upper high orbit.