Physics, 23.09.2019 02:00 Lingz

For safety reasons, in case of an aborted takeoff, the length of the runway must be three times the takeoff distance. what is the minimum length runway this aircraft can use?

Answers: 1

Show answers

Answers

This question s is really asking us to first find the length of runway needed to achieve takeoff speed. Once we find this minimum length, we’ll multiple it by three and compare it to a 2.5 mile runway. The simplest way to solve for this minimum length is to use the answers to the last questions. We will plug acceleration we found and the minimum time required into

$x_{f} = \frac{1} {2} a *$ Δ $t^2 = \frac{1} {2} * 2.3
\frac{m} {s^2} * (34.8s)^2 = 1,393m = 1.39 km$

And we find the minimum runway length is 1.39 km or 0.863 miles (using the conversions in the inside cover of the text). The safe runway length is then 2.59 miles. So, the 2.5 mile long runway in the question is too short, by a smidgen, to launch this jetliner safely

Answer from: JojoSiwa901

The minimum length runway this aircraft can use is about 4.1 km

Further explanation

Acceleration is rate of change of velocity.

$\large {\boxed {a = \frac{v - u}{t} } }$

$\large {\boxed {d = \frac{v + u}{2}~t } }$

a = acceleration ( m/s² )

v = final velocity ( m/s )

u = initial velocity ( m/s )

t = time taken ( s )

d = distance ( m )

Let us now tackle the problem !

Let's look at the table in the attachment

Given:

u = 0 m/s

v = 79 m/s

a = 23 / 10 = 2.3 m/s²

Unknown:

d = ?

Solution:

Let's calculate the takeoff distance.

v^2 = u^2 + 2as

79^2 = 0^2 + 2(2.3)s

6241 = 4.6s

$s = 6241 \div 4.6$

$s \approx 1400 ~ m$

The length of the runway must be three times the takeoff distance.

d = 3s

$d = 3(6241 \div 4.6)$

$d \approx 4100 ~ m$

Learn moreVelocity of Runner : Kinetic Energy : Acceleration : The Speed of Car : Answer details

Grade: High School

Subject: Physics

Chapter: Kinematics

Keywords: Velocity , Driver , Car , Deceleration , Acceleration , Obstacle , Speed , Time , Rate

For safety reasons, in case of an aborted takeoff, the length of the runway must be three times the

Answer from: Quest

32: from largest to smallest, this hierarchy includes eons, eras, periods, epochs, and ages.

33: answer is c

i really hope this answer you out! it makes my day people like you and giving back to the community that has me through school! if you could do me a favor, if this you and this is the very best answer and you understand that all of my answers are legit and top notch. mark as brainliest! and have a awesome day!

Answer from: Quest

unlike poles attract

Another question on Physics

Physics, 22.06.2019 01:00

What are igneous intrusions and extrusions

Answers: 2

Answer

Physics, 22.06.2019 22:00

A51 kg woman skis down a hill and her kinetic energy is 9.96e4 j. what is her speed?

Answers: 2

Answer

Physics, 23.06.2019 02:40

If a rock is thrown upward on the planet mars with a velocity of 10 mys, its height in meters t seconds later is given by y − 10t 2 1.86t 2 . (a) find the average velocity over the given time intervals: (i) [1, 2] (ii) [1, 1.5] (iii) [1, 1.1] (iv) [1, 1.01] (v) [1, 1.001] (b) estimate the instantaneous velocity when t − 1.

Answers: 2

Answer

Physics, 23.06.2019 04:31

What caused magnetic fields? what happens if you keep breaking a magnet in two until you reach a single atom?

Answers: 1

Answer

You know the right answer?

For safety reasons, in case of an aborted takeoff, the length of the runway must be three times the...

Questions