A 51-kg woman contestant on a reality television show is at rest at the south end of a horizontal 142-kg raft that is floating in crocodile-infested waters. She and the raft are initially at rest. She needs to jump from the raft to a platform that is several meters off the north end of the raft. She takes a running start. When she reaches the north end of the raft she is running at 4.8 m/s relative to the raft. At that instant, what is her velocity relative to the water