Physics, 27.01.2020 23:31, dval1146

A(n) 12500 lb railroad car traveling at 7.8 ft/s couples with a stationary car of 7430 lb. the acceleration of gravity is 32 ft/s 2 . what is their velocity after the collision

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A(n) 12500 lb railroad car traveling at 7.8 ft/s couples with a stationary car of 7430 lb. the accel...