Homework Help: Precalculus

Posted by Susan on Tuesday, February 5, 2013 at 2:32am.

Anthony is trying to cross the Mississippi river in a kayak. He is traveling due east at 6 ft/second. However there is a current that is traveling due north at 4 ft/sec. find the new speed and direction of Anthony and his kayak. If the distance across the Mississippi is 120 ft, determine if Anthony would make it to the other side faster if there was a current of if there wasn't

Precalculus - Steve, Tuesday, February 5, 2013 at 5:17am
new speed = √(6^2+4^2) = √52 ft/s

If he rows for the opposite bank, his crossing takes the same time, regardless of the currents' speed.

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