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Physics, 15.07.2019 19:20 eskarletche8
Atrain consists of a 60 mg engine and three cars, each having a mass of 30 mg . if it takes 75 s for the train to increase its speed uniformly to 42 km/h, starting from rest, determine the force t, developed at the coupling between the engine e and the first car a. the wheels of the engine provide a resultant frictional tractive force f which gives the train forward motion, whereas the car wheels roll freely.
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Atrain consists of a 60 mg engine and three cars, each having a mass of 30 mg . if it takes 75 s for...
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