hi, thanks so much!
regarding (3), yupp I have learned about centripetal acceleration, but I'm not sure what they mean by the matter staying on the surface. Am I supposed to equate v2/r to the gravitational field strength? :S
Hello.. some stuff from my tutorial I'm confused about, pls help! thanks:)
1) Why does the moon not fall and hit the earth? Since both exert attractive forces on each other, there should be some kind of acceleration towards a common point.. ><
2)When the Earth and moon are held at rest at...