Question 6

Item 6 On a frictionless. horizontal air table, puck A {with mass [1.250 kg] is moving toward puck B (with mass [1.355 kg], that is initially at rest. Aer the collision. puckA has a velocity of [1.112 mfg to the left, and puck B has velocity [1.660 mfg to the light. For related problemsolving tips and strategies. you may want to View a Video Tutor Solution of Collision along a straight line. Part A What was the speed of puck A before the collision? Express your answer in meters per second. \"we u : mfs R_equest Answer Part B Calculate the change in the total kinetic energy of the system that occurs during the collision. Express your answer in joules. AEd O AK = Submit Request AnswerItem 7 Review | Constants Part A When cars are equipped with flexible bumpers, they will bounce off each other during low-speed collisions, thus causing less damage. In one such What was the speed of the lighter car just after the collision? accident, a 1650 kg car traveling to the right at Express your answer in meters per second to three significant figures. 1.60 m/s collides with a 1350 kg car going to the left at 1.10 m/s. Measurements show that the heavier car's speed just after the collision was AEd ? 0.270 m/s in its original direction. You can ignore any road friction during the collision. m/s Submit Request AnswerPart B Calculate the change in the combined kinetic energy of the two-car system during this collision. Express your answer in joules to three significant figures. VO AEd ? AK = Submit Request AnswerItem 8