A 95,000kg spaceship, moving at 0.34 m/s, wants to dock at a 75000kg satellite that is moving towards it. If the final speed to the joined spacecraft is -0.66 m/s, find the initial speed of the satellite.

Answer 1

Those speeds are unrealistically low for satellites, which move at many km per seciond. What coordinate system are you using as the rest frame?

I suppose they want you to use conservation of momentum. The problem needs to be better defined.