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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 106lb., and center of gravity moving backward at 20m/s. The forward speed of the payload relative to CG is 174m/s. The payload mass is Ib. Ex. 9.8
Two cars in opposite directions were going at 65mph 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 20mph. The mass of Car 1 was 2,000lb. Car 2 was heavier. The mass of Car 2 was Ib. Ex. 9.9