A woman is on a train leaving the station at2.5 m/s , while a friend waving goodbye runs alongside the car she's in. Call the train's direction of motion the +x direction. If the friend is running at 6.5 m/s and moving in the same direction as the train, how fast must the woman walk, and in which direction, to keep up with him? Once the train has reached a speed of 10 m/s, how fast must the woman walk, and in which direction, to keep up with her friend?

Answer rating: 100% (QA)

This is relative velocity conceot In this case friend outside the train move with 65 ... View the full answer