# Answer to Question #30021 in Mechanics | Relativity for eliza

Question #30021

1)A train travels at a speed of 60km/h for 0.52hours at 30km/h for the next 0.24 and then at 70km/h for the next 0.71hours.calculate average speed for the entire train journey?

2)A train travels a distance of 15km at a uniform speed of 30km/h, the next 75km at a uniform speed of 50km/h and the last 10km at a uniform speed of 20km/h.calculate average speed for the entire train journey?

2)A train travels a distance of 15km at a uniform speed of 30km/h, the next 75km at a uniform speed of 50km/h and the last 10km at a uniform speed of 20km/h.calculate average speed for the entire train journey?

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