A train of mass 200 tonnes moves on a level track having a track resistance of 85 Newton per tonnes. find the maximum speed of the engine,when the power developed is 320 kilowatt.
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6
Explanation:
Answer:velocity=72×(1000÷3600)=20m/s
F=0.5×100×9.8
Power=F×v
=0.5×100×9.8×20
=9800W
=9.8 kW
Explanation: Since a=0 as speed is uniform.
Therefore,force of friction=force applied on train.
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2
Answer:
9.8 kw
Explanation:
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