Question

1. A 250 tonne electric train maintains a scheduled speed of 30kmph between station situated 5km apart, with station stops of 30 sec. The acceleration is 1.8 kmphps. And the braking retardation is 3 kmphps. Assuming a trapezoidal speed-time curve, calculate(i)maximum speed of the train (ii) energy you put of the motors if the tractive resistance is40NW per tonne.

Answer 1

Answer:

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