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Using a scale diagram, calculate the resultant force acting on a sailing boat when an easterly wind provides 2.50 kN of force, the tide provides 1.20 kN of force from the direction 30.0° more northerly than the wind. Give your answer to 2 significant figures. Remember that 'an easterly wind' means a wind coming from the East. Units​

Respuesta :

The resultant force to two significant figures is F = 3.6 kN.

The direction is 9.6º to the North - East.

What is the Pythagorean Theorem?

  • The square of the hypotenuse length of a right triangle equals the sum of the squares of the lengths of the other two sides, according to a geometric theorem.
  • According to the Pythagoras theorem, the square of the hypotenuse of a right-angled triangle equals the sum of the squares of the other two sides. The formula for this theorem is c2 = a2 + b2, where c is the hypotenuse, and a and b are the triangle's two legs.
  • Pythagorean triples consist of the three positive numbers a, b, and c, where a2+b2 = c2. These triples exist represented as (a,b,c). Here, a stands the perpendicular, b stands the base, and c is the hypotenuse of the right-angled triangle.
  • The Indian Baudhayana Sulba-sutra, which was authored between 800 and 400 BCE, makes reference to the theorem. Nevertheless, Pythagoras eventually received credit for the theorem.

X-axis

         F₁ = 2.50 kN

Tide

        cos 30 = F₂ₓ / F₂

        sin 30 = F_{2y} / F₂

         F₂ₓ = F₂ cos 30

        F_{2y} = F₂ sin 30

        F₂ₓ = 1.20cos 30 = 1.039 kN

        F_{2y} = 1.20 sin 30 = 0.600 kN

the resultant force is

X-axis

       Fₓ = F₁ₓ + F₂ₓ

       Fₓ = 2.50 +1.039

       Fₓ = 3,539 kN

       F_y = F_{2y}

       F_y = 0.600

To find the vector, we use the Pythagorean theorem:

[tex]F=\sqrt{F_{x} ^{2} } {F_{x} ^{2}}[/tex]

[tex]F=\sqrt{3.539^{2}+0.600^{2} }[/tex]

F = 3,589 kN

        tan θ = F_y / Fₓ

        θ = tan⁻¹

        θ = tan⁻¹  0.6 / 3.539

        θ = 9.6º

Therefore,

The resultant force to two significant figures is F = 3.6 kN

The direction is 9.6º to the North - East

To learn more about the Pythagorean theorem, refer to:

https://brainly.com/question/24181856

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