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You're an accident investigator at a scene where a drunk driver in a 1600 kg car has plowed into a 1300 kg parked car with its brake set. You measure skid marks showing that the combined wreckage moved before stopping, and you determine a frictional coefficient of . What do you report for the drunk driver's speed just before the collision?
Explosive bolts separate a 950 kg communications satellite from its 640 kg booster rocket, imparting a impulse. At what relative speed do satellite and booster separate?
In our problem an explosion happens and separates a satellite of mass from a rocket of mass , by imparting an impulse of .
We need to find the relative speed of the satellite and rocket after the separation.
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