Find the speed of the train which passes a tree in 12 seconds, if the length of the train is 480 m.

49 m/s

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45 m/s

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41 m/s

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40 m/s

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30 m/s

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Solution

The correct option is D
40 m/s

Speed = $\frac{480}{12}$ = 40 m/s

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