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You and a pair of life preservers are floating down a swift river you wish to get to either of the life preservers for safety 1 is 3 meters upstream and 1 3 meters downstream which can you get to fast?
Wiki User
∙ 16y ago
If each life preserver is 3 meters on either side, up and down, then you will reach either life preserver with the equal amount of time. As both you and the two life preservers are travelling downstream at equal speed. If you swim to the life preserver upstream you are effectively slowing yourself down and allowing the life preserver upstream to catch up to you. On the other hand, if you swim to the life preserver downstream you are effectively speeding yourself up to catch up to the life preserver downstream. As the frame of reference is the movement of the river, your distance to either life preserver is the same and hence can be reached with the equal amount of time. Answered by Ask4MyTutor
Wiki User
∙ 16y ago
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