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define speed.what is its si unit?calculate the speed of a train travelling a distance of 400 min in 5 hours.also express it in m/sec. |
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Answer» speed is distance traveled PER unit time. its S.I. unit is m/s. Remaining question is wrong. you have written 400 min in 5 hours the unit after 400 should be METRE or kilometer . pls TELL |
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