= Problem 4. Accident Inspector. You are in charge of reconstructing the scene of an accident: A pick-up truck (with mass mp 2000 kg) and a sports car (with mass mc = 1000 kg) had collided at an intersection where the traffic lights had malfunctioned. The pick-up was moving directly East and the sports car directly North at the time of collision, and the vehicles became enmeshed, moving as one after the collision. Both drivers slammed on their brakes at the time of collision, locking their wheels. You see a long straight set of skid marks on the concrete caused by the vehicles skidding to a stop. The line of skid marks is at an angle of 0 = 36.87 North of East (note, this is the smallest angle in a 3-4-5 triangle). And the length of the skid marks is 25 m. In this problem, let k (5/9) be the coefficient of kinetic friction. = Pick-up truck 25m Sports car 36.87 Your goal is to determine which of the two drivers should get a speeding ticket, given that the local speed limit is 50 mph or 22.4 m/s. (a) Write out your problem-solving strategy for this problem. What concepts or equations do you need? What quantities do you need to find to get your final answer? Do you need to make any assumptions? Start by drawing a diagram or two! Hint - Consider the cars in three instances: just before the collision, just after the collision, and at their final resting point. (b) Execute your strategy to see who was driving over the speed limit!