Two skaters with masses of 65 kg and 45 kg, respectively, stand 8.0 m apart, each holding one end of a piece of rope.
(a) If they pull themselves along the rope until they meet, how far does each skater travel? (Neglect friction.)
(b) If only the 45-kg skater pulls along the rope until she meets her friend (who just holds onto the rope), how far does each skater travel?