f3 h} Perform appropriate calculations to determine whether the collision is elastic. State your conclusion. 3. A billiard cue ball with a mass of 0.60 kg and an eight ball with a mass of 0.55 kg roll toward each other. The cue ball has a velocity of 3.0 m/s at 0" and the eight ball has a velocity of 2.0 m/s at 90%. After the collision, the cue ball moves off at a velocity of 2.0 m/s at 40. Include vector diagrams in your answer to show how you determined the missing values for both the eight ball and the cur ball. m =0.60 kg before after V = 3.0 m/s P'e Pe m =0.55 kg V = 2.0 m/s Ps a) Determine the velocity of the eight ball. /61. A car with a mass of 1400 kg is westbound at 50 km/h. It collides at an intersection with a northbound truck having a mass of 2000 kg and travelling at 40 km/h. What is the initial common velocity of the car and truck immediately after the collision if they have an inelastic collision? For this question, a diagram is drawn for you. (You will find that drawing such a diagram will often be useful in solving two dimensional problems.) Z Pear pouiqwood young S /5 81A police car with a mass of 1400 kg is headed west at 50 kah when it has an inelastic collision with a southbound ZUDD-kg ambulance. The wreckage ended up travelling at 45 kmx'h at 236\". a] What was the initial speed of the ambulance? Include a vector diagram with your answer. [5 marks] f6 b} The above collision is classified as an i collision because ii conserved. we know this because iii {1 mark] m The nal velocity is less than the initial the final velocity is less than the initial Kinetic energy is not The vehicles stick together n__ The vehicles stick together The letter of the row that best complete the above statement is