Physics, 02.08.2019 00:30, googoo4

Atrain is speeding down a railroad track at the speed of 50 miles per hour. from whose reference point is the train not moving? a: a person sitting on a train b: a person sitting on the tracks 1 mile behind the train c: a person sitting on tracks 1 mile in front of train. d: a person standing to the side of the railroad tracks

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Atrain is speeding down a railroad track at the speed of 50 miles per hour. from whose reference poi...