Problem 5 Train Reaction + Boat Run Three train cars are connected and moving at a speed up. A fourth car with speed 400 catches the group and connects to them, to make a group of four. (a) If each train car has identical mass, what is the speed of the group after the collision? (b) Now suppose the group (of four) collides with a fifth identical train car that was moving towards them with speed. If they all couple together, what is the final speed of the five car group? Andres (with mass m) is standing on the right side of a boat (with mass 3m) and decides to run as fast as he can to the other side. Lovleen is watching from the shore and notices he appears to be running with speed vo. There is no friction between the boat and water. (c) How fast is the boat moving? (d) How fast would Andres argue that he can run?

Problem 5 Train Reaction + Boat Run Three train cars are connected and moving at a speed up. A fourth car with speed 400 catches the group and connects to them, to make a group of four. (a) If each train car has identical mass, what is the speed of the group after the collision? (b) Now suppose the group (of four) collides with a fifth identical train car that was moving towards them with speed. If they all couple together, what is the final speed of the five car group? Andres (with mass m) is standing on the right side of a boat (with mass 3m) and decides to run as fast as he can to the other side. Lovleen is watching from the shore and notices he appears to be running with speed vo. There is no friction between the boat and water. (c) How fast is the boat moving? (d) How fast would Andres argue that he can run?

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter10: Systems Of Particles And Conservation Of Momentum

Section: Chapter Questions

Problem 43PQ: A 44.0-kg child finds himself trapped on the surface of a frozen lake, 10.0 m from the shore. The...

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