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Atrain moves with a speed of 30 km/h in the first 15 minutes, with another speed of 40 km/h in the next 15 minutes and then with a speed of 60 km/h in the last 30 minutes. Calculate the average speed of thetrain for this journey. |
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Answer» ✴AVERAGE SPEED ✴------------------------------------------------------------------------------------------------------DISTANCE 1 = 30×15= 450mDistance 2 = 40×15= 600mDistance 3 = 60×30= 1800mTotal distance = 1800+600+450= 2850mTotal time = 15 + 15+30= 60 .Thus ,-----------------------------------------------------------------------------------------------------hope it HELPS plz mark my answer as the BRAINLIEST thanks |
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