16. Match the statement with the correct collision type 15. An object explodes into three equal masses. One mass moves east at a 17. A 92.3 kg football quarterback attempts to carry the ball to the goal line velocity of 15.0 m/s. If a second mass moves at a velocity of 10.0m/'s running at 7:52 m/'s [W]. He is tackled by an opposing defensive lineman 1. 2-dimensional collision [45.0' S of E]. what is the velocity of the third mass? with mass of 124 kg charging him at 4.74 m/'s [N]. Their combined 2. inelastic collisions velocity, after the 0.265 s impact takes both of them off their feet, is 3. elastic collisions 4.205 m/'s [40.26* N of W]. 4. all collisions 18.0 m/s 17.8' N of W Based on the information in the above narrative, the collision between Kinetic energy is conserved. (Record your answer in the the two football players should be classified as an first space) 23.2 m/s 17.8' N of W _Momentum is conserved in both the x and y O 23.2 m/s 72.3" N of W Oinelastic collision because the loss of kinetic energy of the system directions. (Record your answer in the second space) was 52.2%. Mass and momentu e conserved. (Record your answer 18.0 m/s 72.3' N of W elastic collision because only 47.8% of the initial kinetic energy was in the third space) lost. _Energy is given off as heat. (Record your answer in the Use the following information to answer the next question Oelastic collision because more than half of the initial kinetic energy fourth space) of the players remained after the collision. Car 1 has a mass of 1.50 x 103 kg and is moving at a constant speed of 5.00 m/s. It strikes Car 2, which is at rest and has a mass of 1.20 x 103 kg. Oinelastic collision because the final kinetic energy of the system was Your answer: OOOO The cars lock together and continue to roll forward. They then collide and about 52.2% of the initial kinetic energy. lock together with Car 3, which is at rest and has a mass of 1.80 x 103 kg. 14. A 285 g volleyball is traveling horizontally through the air at 6.82 m/'s Before First Collision Use the following information to answer the next two questions [28.4' N of E]. The volleyball hits a 586 g basketball, which was traveling Cir 3 at 1.54 m/s [56.4* S of W], and the volleyball rebounds horizontally at a At the start of mating season, two bighorn rams battle in a head-butting velocity of 3.77 m/s (66.2* S of W]. contest. The 118 kg older male leaps towards the challenger at 8.25 m/s [0.0']. The younger ram jumps toward the elder at 8.43 m/s (180"]. The mediately After First Collision older ram is bounced back at 0.170 m/'s [180*] by the 0.128 s collision, and the younger ram also rebounds at 0.210 m/'s [0.0"]. Immediately After Second Collision ram was 11. Based on the information in the above narrative, the mass of the younger 121 kg O 125 kg 13. The maximum speed of this three-car system, V123, immediately after the second collision is _m/s. (Record your three-digit answer, O 115 kg including your decimal in your answer) O 118 kg The now velocity of the basketball immediately after this collision is Your answer: 0DOO m/s. (Record your three digits answer.) 12. Based on the information in the above narrative, the collision between Your answer: 0DOO the two rams should be classified as an Oelastic collision because both rams had kinetic energy after the collision. inelastic collision because the loss of kinetic energy of the system was more than 95%. inelastic collision because the final kinetic energy of the system was 5.22% of the initial kinetic energy. elastic collision because both of the rams bounced backwards after colliding