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Physics 12 Online
OpenStudy (anonymous):

pleasee help!! i got 18.02, i don't know what i'm doing wrong A car traveling north at 10.0 m/s crashes into a car traveling east at 15 m/s at an unexpectedly icy intersection. The cars lock together as they skid on the ice. The two cars have the same mass. What is their combined speed after the collision? 5.0 m/s 15 m/s 9 m/s 25 m/s

OpenStudy (anonymous):

9 is the answer you have not taken the combined mass as twice the initial mass

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