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olga55 [171]
3 years ago
13

A boat travels with velocity vector (25, 25 StartRoot 3 EndRoot). What is the directional bearing of the boat? N 30° E E 30° S E

30° N N 30° W
Mathematics
2 answers:
-Dominant- [34]3 years ago
7 0

Answer:

a

Step-by-step explanation:

Lina20 [59]3 years ago
3 0

Answer:

The directional bearing of the boat is N 30º E

Step-by-step explanation:

Let \vec v = (25, 25\sqrt{3}), where \vec v is the vector velocity. Given that such vector is represented in rectangular, a positive value in the first component is the value of the vector in the east direction, whereas a positive value in the second component is in the north direction. The directional bearing of the boat (\theta), measured in sexagesimal degrees, is determined by trigonometrical means:

\theta = \tan^{-1}\frac{v_{y}}{v_{x}} (1)

If we know that v_{x} = 25 and v_{y} = 25\sqrt{3}, then the directional bearing of the boat is:

\theta = \tan^{-1} \sqrt{3}

\theta = 60^{\circ}

In consequence, we conclude that the direction bearing of the boat is 30 degrees to the East from the North (N 30º E).

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