Soru
Select the correct answer. A boat travels north across a river at a velocity of 22meters/second with respect to the water. The river's velocity is 2.2meters/second to the east. What is the resultant velocity of the boat, as measured from the land? A. 24.2meters/second northeast B 35.5meters/second north 22.1meters/second northeast D 28.7meters/second east
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Cevap
To find the resultant velocity of the boat, we need to use the Pythagorean theorem since the boat's velocity relative to the water and the river's velocity form a right-angled triangle.The resultant velocity can be found using the formula:
where
is the velocity of the boat with respect to the water, and
is the velocity of the river.Plugging in the given values:
Therefore, the correct answer is C.
northeast.