hey guys just wondering if anyone can help me...
Three identical freight cars have the velocities indicated.
Assuming that car B is first hit by car A, determine the velocity of each car after all collisions have taken place if all three cars get automatically coupled.
Velocity of car A is 7.5km/h
velocity of car B is 0km/h
velocity of car C is 6Km/h
car A is traveling to the right and car C to the left, car B is stationary in between.
i understand what the question is asking me to do but i don't understand how to do it without knowing the respective weights of the cars, it states the carts are identical but still surely there weights and distance between them need to be known?!?!
can anyone help me?