Calculating Collisions?

Question

so first off I'm given mass of 2 cars, Car A is 1968 kg including all passengers, Car B is 1631 kg with passengers. the coefficient for friction of the system is 0.7. I'm then given the statement, Car B failed to stop at an intersection. Car A was traveling from the left to the right of the system and Car B traveling from the bottom to the top. Then I'm given two angles at which the cars are traveling after they collide. Car A makes 135 degrees to the horizontal, now traveling to the top right corner of the system. Car B makes 130 degrees to the vertical and now faces to the right approx.

Can i get help calculating first off the force of the the two cars, then the momentum and finally the velocity each car was traveling before the collision.

Answer 1

You're missing information from your question.  Momentum is mass times velocity, but there is no velocity given anywhere.  To calculate the velocity before the collision you need velocity after the collision.

Without values for at least distance or velocity or momentum before or after, you're kind of stuck.  I've done a ton of these questions but I've always been given velocity before or after the collision, or some kind of distance measurement.  Police measure the distance and angle of vehicles after collision to figure out how fast each car was going just before they collided.

Either you missed typing in that info, or it wasn't given and this is one of those "unsolvable" ones.  I used to get those once in a while.  They throw them in to see if you're paying attention, lol.