Asked by Crystal

a motorboat is driven across a river at 5km/h at right angles to a current flowing at 3.9km/h. What is the resulting speed of the motorboat?
Answered by drwls
When you add the two perpendicular vectors, the resultant vector will be the hypotenuse.

sqrt[(5^2) + (3.9)^2] = ___
Answered by Anonymous
6.34km/h
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