- #1

- 10

- 0

A) When their centers are 27.0 m apart, find the speed of the 30.0 kg sphere.

B) Find the speed of the sphere with mass 109.0 kg.

C) Find the magnitude of the relative velocity with which one sphere is approaching the other.

D) How far from the initial position of the center of the 30.0 {\rm kg} sphere do the surfaces of the two spheres collide?

I know that m1*v1=m2*v2 and U=-(G*m1*m2)/r, but I'm not sure how to use these equations to find what the question is looking for. Any suggestions would be greatly appreciated!