Suppose a train is moving to the speed of 40 km/h and the train is connected to 30 coaches after crossing some station 20 coaches are removed from the train, will it's speed change or not
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Answer:
It will change the speed of the train.
Means 10 coaches are light 30 are heavy
so,The speed of the train is increased by decreased by removing 20 coaches
Explanation:
30-20 is 10
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