A 11722 kg freight train, coasting at 11 m/s, strikes a stationary 13855 kg box car. Determine the "CHANGE IN MOMENTUM" for the box car if the freight train and the box car couple together. Hint: Draw an "IF Chart" to solve. (This question has been updated so Canvas now has the correct Answer).

Question

A 11722 kg freight train, coasting at 11 m/s, strikes a stationary 13855 kg box car. Determine the "CHANGE IN MOMENTUM" for the box car if the freight train and the box car couple together. Hint: Draw an "IF Chart" to solve. (This question has been updated so Canvas now has the correct Answer).

so i got 69847.5700 i have a feeling i am off what did everyone else get

Answer 1

momentum is conserved

so the momentum of the train is "distributed" to the train/box car

just because your calculator displays them, there are NOT 11 sig figs in the answer