Asked by Savannah
You are in a boat that is traveling across a river from east to west at 4.0 m/s. the river runs north at 3.0 m/s. what is the resultant velocity of the boat?
Answers
Answered by
Henry
Vb = 4m/s @ 180o + 3m/s @ 90o.
X = 4*cos180 + 3*cos90 = -4 m/s.
Y = 4*sin180 + 3*sin90 = 3 m/2.
tanAr = Y/X = 3/-4 = -0.7500
Ar = 36.87o = Reference angle.
A = 180 - 36.87 = 143o.
Vb = X/cosA = -4/cos143 = 5 m/s.
X = 4*cos180 + 3*cos90 = -4 m/s.
Y = 4*sin180 + 3*sin90 = 3 m/2.
tanAr = Y/X = 3/-4 = -0.7500
Ar = 36.87o = Reference angle.
A = 180 - 36.87 = 143o.
Vb = X/cosA = -4/cos143 = 5 m/s.
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.