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January 25, 2015

January 25, 2015

Posted by **Paul** on Saturday, May 26, 2007 at 12:30pm.

Thank you

Lava traveled 5 km in 2 days. How long will it take for lava to travel 10 km?

But what about speed?

If you wish to calculate the velocity (rate), it is

distance = rate x time

5 km = rate x 2 days.

rate = 5 km/2 days = 2.5 km/day. Then, knowing the rate we can calculate the time for a new distance. That would be

distance = rate x time

10 km = 2.5 km/day x time and solve for time. Of course you can change all this to km/hour or some other time unit you wish; however, we assume that it travels at the same speed so 5 km in 2 days means 10 km in 4 days or 15 km in 6 days, or 20 km in 8 days etc.

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