How to find the total momentum before and after a collision?

Physics - Momentum and Impulse?

• A 34 440 kg runway locomotive is heading south at 44km/h when it hits a stationary boxcar on the track. Empty, the boxcar has a mass of 0550kg. It was loaded with 8449kg of cargo. After the collision, the boxcar and content bounce forward off the locomotive and head south at 33km/h a) Find the momentum of the locomotive before the impact b) Find the momentum of the boxcar after the impact c) Find the momentum of the locomotive after the collision d) Find the velocity of the locomotive after the collision e) The locomotive and the boxcar were touching each other for 0.25s during the collision. Find the average force the locomotive applied to the boxcar during the collision Could you not use any crazy *** formulas to solve this? All I've leard to apply so far is this: p= mv Change in P = Pf - Pi or m(vf-vi) or Force multiplied by change in time Total change in P before collisions = Total change in P after collisions Could you please try and apply any of these formulas that you can and show how you achieved the answer

• Answer:

  What you need to do is find the quantum factor of the gravitational pull and times that by the total torque collision force of the vertical pull