A railroad car with a mass of 2 07 x 104 kg moving at 2 98 m s joins with two railroad cars already joined together, each with the same mass as the single car and initially moving in the same direction at 1 22 m s (a) What is the speed of the three joined cars after the collision m s (b) What is t...

a To find the speed of the three joined railroad cars after the collision we can use the principle o ...

A railroad car with a mass of 2.07 x 104 kg moving at 2.98 m/s joins...

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