In the middle of a race, three runners have the following speeds and masses. A. 56 kg, 4.5 m/s B. 66 kg, 4.0 m/s C. 87 kg, 2.5 m/s Order the runners from largest linear momentum to smallest linear momentum. (Use only ">" or "=" symbols. Do not include any parentheses around the letters or symbols.)

8. An alien egg (6.0 kg) is sitting out in space with nothing else nearby. Suddenly (over 0.2 s) the egg breaks into two pieces and flies apart. One piece is 1.5 kg and flies off toward the left at 3.0 m/s. The other piece flies off at 9.0 m/s to the right. A baby alien is now in the spot where the egg was. Solve everything symbolically until asked to solve numerically a. Symbolically, what is the mass of the piece of egg going to the right? b. Numerically, what is the mass of the piece of egg going to the right? c. Symbolically, what is the mass of the baby alien? d. Numerically, what is the mass of the baby alien?

A. В. C. D. 3 kg 3 kg v= 5 m/s 3 kg 3 kg v = 0 m/s v= 2 m/s Above shows an object at different positions. v=-4 m/s Calculate the object's momentum at position A. Round to the nearest whole number. DO NOT include units Point a [A]

As shown on the right two identical objects have the same mass. They are moving with the same speed but one is going due North and the other is going due East. Which of the following statements is completely correct? North a. East m m V Select one: They both have the same kinetic energies and the same momentum. b. They have different kinetic energies and they have different momentum. OC. They have the same kinetic energies, but they have different momentum. Od. They have different kinetic energies, but they have the same momentum.