1. The police are investigating an accident similar to the one pictured in Figure given below. Using data tables, they have determined that the mass of car A is 2275 kg and the mass of car B is 1525 kg. From the skid marks and data for the friction between tires and concrete, the police determined that the cars, when they were locked together, had a velocity of 31 km/h at an angle of 43* north of the eastbound street. a) If the speed limit was 35 km/h on both streets, should one or both cars be ticketed for speeding? b) Which car had the right of way at the intersection? Was one driver or were both drivers at fault for the accident VAB IVA 2. A firecracker sits in a 7.0 kg pumpkin. After it explodes, the pumpkin splits into two chunks. A 5.0 kg piece travels west at 10.0 m/s. What is the mass and velocity of the other piece? (Ignore the mass of the firecracker)1. Use the following diagram for practice problems 4.0 m 5 as 12.0 m A 4.0 m A car on a roller coaster is moving along a level section 12.0 m high at 4.0 m/s when it begins to roll down a slope, as shown in the diagram. a) Determine the speed of the car at point A. b) What is the height of point B in the roller coaster track if the speed of the car at that point is 10.0 m/s? c) What is the height of y if the speed of the roller coaster at B is 12.5 m/s