(a) Three trains cars are connected and moving at a speed vo. A fourth car with speed 2vo catches the group and connects to them, to make a group of four. All four then collide with a fifth car that was at rest. The five cars now all move together. Assuming all the cars have identical mass, what is the speed of the entire group coupled together?

Physics for Scientists and Engineers: Foundations and Connections
1st Edition
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Katz, Debora M.
Chapter11: Collisions
Section: Chapter Questions
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Problem 6 Train Cars and Droneplosion
(a) Three trains cars are connected and moving at a speed vo. A fourth car with speed 2vo catches the
group and connects to them, to make a group of four. All four then collide with a fifth car that was at
rest. The five cars now all move together. Assuming all the cars have identical mass, what is the speed
of the entire group coupled together?
(b) A drone with mass m is flying at speed vo (in the positive direction) when it suddenly explodes into
three pieces. One piece with mass m, is immediately traveling in the opposite direction with speed vo
and a second piece of mass m is traveling in the original direction with speed vo. What is the direction
and speed of the third piece?
Transcribed Image Text:Problem 6 Train Cars and Droneplosion (a) Three trains cars are connected and moving at a speed vo. A fourth car with speed 2vo catches the group and connects to them, to make a group of four. All four then collide with a fifth car that was at rest. The five cars now all move together. Assuming all the cars have identical mass, what is the speed of the entire group coupled together? (b) A drone with mass m is flying at speed vo (in the positive direction) when it suddenly explodes into three pieces. One piece with mass m, is immediately traveling in the opposite direction with speed vo and a second piece of mass m is traveling in the original direction with speed vo. What is the direction and speed of the third piece?
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