Question

FUS After takeoff, an aircraft enters a straight-line flight path with constant speed at point P(1.5|9|0.5). speed. In one minute it travels a distance vector v=(-1 5 0.2) back. Information in km. a) (1) Determine the speed of the aircraft in km/h. (2) After 4 minutes the plane reaches a big city. Calculate the altitude at this time. b) At an altitude of 2500 m the pilot switches to autopilot. Calculate the coordinates of the point where the aircraft is at this moment and state how much time has passed since the aircraft was at point P. c) Between the points A(-5|38|0.1), B(-4|40|0.11) and C (-7|39|0.1) there is a small natural protected area in the shape of a triangle. (1) Examine triangle ABC for special features. (2) Check whether the aircraft is flying over route AB and, if so, at what distance

60

likes
301 views

Answer to a math question FUS After takeoff, an aircraft enters a straight-line flight path with constant speed at point P(1.5|9|0.5). speed. In one minute it travels a distance vector v=(-1 5 0.2) back. Information in km. a) (1) Determine the speed of the aircraft in km/h. (2) After 4 minutes the plane reaches a big city. Calculate the altitude at this time. b) At an altitude of 2500 m the pilot switches to autopilot. Calculate the coordinates of the point where the aircraft is at this moment and state how much time has passed since the aircraft was at point P. c) Between the points A(-5|38|0.1), B(-4|40|0.11) and C (-7|39|0.1) there is a small natural protected area in the shape of a triangle. (1) Examine triangle ABC for special features. (2) Check whether the aircraft is flying over route AB and, if so, at what distance

Expert avatar
Santino
4.5
111 Answers
a)
(1) Zur Bestimmung der Geschwindigkeit des Flugzeugs in km/h teilen wir die zurückgelegte Strecke durch die Zeit:
\text{Geschwindigkeit } = \frac{\text{Strecke}}{\text{Zeit}} = \frac{\|\textbf{v}\|}{\text{Zeit}}

Gegeben: $\textbf{v} = (-1, 5, 0.2)$ km und Zeit = 1 Minute = 1/60 Stunde.

Berechnung der Geschwindigkeit:
\|\textbf{v}\| = \sqrt{(-1)^2 + 5^2 + 0.2^2} = \sqrt{1 + 25 + 0.04} = \sqrt{26.04} \approx 5.10 \text{ km}
\text{Geschwindigkeit} = \frac{5.10}{1/60} = 5.1 \times 60 = 306 \text{ km/h}

(2) Die Flughöhe nach 4 Minuten beträgt:
Höhe = 9 + (4 * 0.2) = 9.8 km

b)
Bei einer Höhe von 2500 m = 2.5 km schalten wir auf Autopilot um.

Die Koordinaten des Flugzeugs ergeben sich durch Addition des Vektors $\textbf{v}$ zum Punkt P:
(1 + (-1), 5 + 5, 0.5 + 0.2) = (0, 10, 0.7)

Die Zeit, die seit dem Punkt P vergangen ist, beträgt:
\frac{\sqrt{(0-1)^2 + (10-5)^2 + (0.7-0.5)^2}}{5.1} = \frac{\sqrt{1 + 25 + 0.04}}{5.1} \approx \frac{\sqrt{26.04}}{5.1} \approx \frac{5.1}{5.1} \approx 1 \text{ Stunde}

c)
(1)
Das Dreieck ABC ist ein gleichschenkliges Dreieck, da AB und BC jeweils die gleiche Länge haben.

(2)
Um zu prüfen, ob das Flugzeug die Strecke AB überfliegt, betrachten wir den Abstand des Flugzeugs von der Linie, die durch die Punkte A und B verläuft. Der Abstand kann durch den Normalenvektor auf die Ebene von A und B bestimmt werden.

Den Normalenvektor der Ebene bestimmen:
\textbf{n} = (A-B) \times (A-C) = \begin{pmatrix} -5+4 \ 38-40 \ 0.1-0.11 \end{pmatrix} \times \begin{pmatrix} -5+7 \ 38-39 \ 0.1-0.1 \end{pmatrix} = \begin{pmatrix} -1 \ -2 \ -0.01 \end{pmatrix} \times \begin{pmatrix} 2 \ -1 \ 0 \end{pmatrix}
= \begin{pmatrix} 0.01 \ -0.02 \ -3 \end{pmatrix}

Der Abstand des Flugzeugs von der Ebene beträgt:
\frac{| \textbf{n} \cdot (P - A) |}{\|\textbf{n}\|} = \frac{| \begin{pmatrix} 0.01 \ -0.02 \ -3 \end{pmatrix} \cdot \begin{pmatrix} 1 \ 5 \ 0.5 \end{pmatrix} - \begin{pmatrix} 0.01 \ -0.02 \ -3 \end{pmatrix} \cdot \begin{pmatrix} -5 \ 38 \ 0.1 \end{pmatrix} |}{\sqrt{0.01^2 + (-0.02)^2 + (-3)^2}}

= \frac{| (0.01 \cdot 1 + (-0.02) \cdot 5 + (-3) \cdot 0.5) - (0.01 \cdot (-5) + (-0.02) \cdot 38 + (-3) \cdot 0.1) |}{\sqrt{0.01^2 + (-0.02)^2 + (-3)^2}}

= \frac{| 0.01 - 0.1 + 1.5 - 0.76 |}{\sqrt{0.01^2 + (-0.02)^2 + (-3)^2}} = \frac{| 2.67 |}{\sqrt{9.05}} \approx \frac{2.67}{3} \approx 0.89 \text{ km}

Antwort: a) (1) Die Geschwindigkeit des Flugzeugs beträgt 306 km/h.
b) Nach 4 Minuten beträgt die Flughöhe 9.8 km. Die Koordinaten des Flugzeugs sind (0, 10, 0.7) und es ist 1 Stunde vergangen, seit es sich im Punkt P befand.
c) (1) Das Dreieck ABC ist gleichschenklig.
(2) Das Flugzeug überfliegt die Strecke AB in einem Abstand von etwa 0.89 km.

Frequently asked questions (FAQs)
Question: Solve the quadratic equation 3x^2 + 5x - 2 = 0.
+
What is the unit vector component of a vector AB with magnitude 5 and direction angle 60 degrees in the positive x-axis?
+
Math question: What is the absolute maximum and minimum value of the function f(x) = x^3 - 2x^2 - 3x on the closed interval [0, 4]?
+
New questions in Mathematics
1 + 1
How much volume of water in MegaLiters (ML) is required to irrigate 30 Hectare crop area with depth of 20mm?
Two fire lookouts are 12.5 km apart on a north-south line. The northern fire lookout sights a fire 20° south of East at the same time as the southern fire lookout spots it at 60° East of North. How far is the fire from the Southern lookout? Round your answer to the nearest tenth of a kilometer
a ferry travels 1/6 of the distance between two ports in 3/7 hour. The ferry travels at a constant rate. At this rate, what fraction of the distance between the two ports can the ferry travel in one hour.
-6n+5=-13
The actual length of an object is 1.3 m . If the blueprint uses a scale of 1 : 12 , what is the length of the line on the drawing?
(2b) to the 1/4th power. Write the expression in radical form.
The durability of a tire of a certain brand is a Normal random variable with an average of 64,000 km and a standard deviation of 9,000 km. Assuming independence between tires, what is the probability that the 4 tires on a car will last more than 58,000 km?
Log5 625
The ninth term of a given geometric progression, with reason q , is 1792, and its fourth term is 56. Thus, calculate the fourth term of another geometric progression, whose ratio is q +1 and whose first term is equal to the first term of the first P.G. described.
DuocUC 2) The cost C, in pesos, for the production of x meters of a certain fabric can be calculated through the function: (x+185) C(x)=81300-6x+ 20000 a) It is known that C(90) 5.344. Interpret this result. (2 points) b) Calculate C'(x) (2 points) 3 x²+111x-0.87 20000 2000 c) Function C calculates the cost while producing a maximum of 500 meters of fabric. Determine the values of x at which the cost of production is increasing and the values of x at which the cost is decreasing. (3 points) d) If a maximum of 500 meters of fabric are produced, what is the minimum production cost? (
Use the power rule for logarithms to solve the following word problem exactly. If you invest $1, 000 at 5% interest compounded annually, how many years will it take before you have $2,000?
Determine the increase of the function y=4x−5 when the argument changes from x1=2 to x2=3
If a|-7 and a|9, then a|-63
Find the zero of the linear function 8x + 24 = 0
prove that for sets SS, AA, BB, and CC, where AA, BB, and CC are subsets of SS, the following equality holds: (A−B)−C=(A−C)−(B−C)
a coffee shop has 9 types of creamer and 11 types of sweetener. In how any ways can a person make their coffee?
Paola went on vacation for 15 days if it rained 20% of the days. How many days did it rain?
Hola👋🏻 Toca en "Crear Nueva Tarea" para enviar tu problema de matemáticas. ¡Uno de nuestros expertos comenzará a trabajar en ello de inmediato!
The car with an irresponsible driver starts to brake when it goes through a red light. When passing the traffic light, he does so at a speed of 115 kph in the right lane. Further ahead, 70 meters from the traffic light, a child is crossing the street and falls. If the effect of the car's brakes is equivalent to a deceleration of magnitude 5.7m/s². Is the child hit by the car or not? How far from the traffic light does the car stop?