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# (Solved): What has the most impulse in this? To have the car: keep moving forward. stop right there. bounce b ...

What has the most impulse in this? To have the car: keep moving forward. stop right there. bounce backward. slow down. Here the gun gains a momentum the bullet. greater magnitude than the same direction as less magnitude than the same magnitude as Question 3 Here a collision does not cause damage due to: collision avoidance. little momentum. increased contact time. seat belts. Hence, adding up all the cars, the sum total is always conserved. distance traveled energy velocity momentum After one hits another: total momentum does not conserve. the two often go in the same direction. the two often go 90 degrees to each other. most of the energy is lost. A spaceship with fuel is initially at rest at point CG. Fuel is ejected at the back to propel the payload to the forward direction. After a long time, the total fuel ejected out has a mass of ., and center of gravity moving backward at . The forward speed of the payload relative to is . The payload mass is Ib. Ex. 9.8 Two cars in opposite directions were going at before a collision. They had a head on inelastic collision, i.e. the two cars stuck together afterward. The common speed of the combined piece right after the collision is . The mass of Car 1 was . Car 2 was heavier. The mass of Car 2 was Ib. Ex. 9.9

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