Talk:A-level Physics (Advancing Physics)/Gravitational Forces

If anyone can do a worked solution for a question involving calculating the point between the Earth and the Moon at which there is no net force, please do! I got imaginary solutions... --Sjlegg (talk) 09:58, 6 April 2009 (UTC)

Newton's cannon
I'd like to write a section on Newton's cannon but do not have a diagram that is not copyrighted. Hence ending the first paragraph with something about gravity has a lot to do with falling.

I'd also like to write some questions about calculating the acceleration an object should experience 200km above the surface of the Earth.