After landing on the moon, Apollo astronauts used a carlike vehicle called the lunar rover to explore the moon´s surface. For safety, they had to stay within walking distance of their spacecraft in case the rover broke down.

How far could the Apollo astronauts drive away from their spacecraft at 10 km/h and still be able to walk back at 2.5 km/h, if their spacesuits could sustain life for 8 hours?

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