(8%) Problem 8: Starting from rest, your plane taxis to the runway. At a time to = 8.5 min later, the plane is cleared for takeoff from rest and accelerates down the runway with a constant acceleration of a = 2.85 m/s² for a time interval t = 45 s before taking off. Refer to the figure. t= 0 t=t,+t taxi min Otheexpertta.com E V 25% Part (a) Enter an expression for the plane's takeoff speed, v, in terms of given quantities. V; = a (t, ) vCorrect! E V 25% Part (b) Calculate the plane's takeoff speed, in meters per second. = 128.25 = 128.3 V Correct! E V 25% Part (c) Enter an expression, in terms of a and ta, for the minimum length of runway, dmin- this plane requires to reach takeoff speed with the given acceleration and time interval. dmin - 0.5 at? Correct! > * 25% Part (d) Calculate the average acceleration of the plane, in meters per second squared, during the time period from when it begins to taxi until it takes off. Grade Summary aavg = Deductions 0% Potential 100% sin() cos() tan() 8 9 НОМЕ Submissions Attempts remaining: 15 (0% per attempt) detailed view cotan() asin() acos() E 4 6. atan() acotan() sinh() 2 3 cosh() tanh() cotanh() + END 1 0% A 2. 0% O Degrees O Radians vol BACKSPACE CLEAR 0% 4. 0% Submit Hint Feedback I give up! Hints: 2 for a 0% deduction. Hints remaining: 0 Feedback: 0% deduction per feedback. -Use the definition of average acceleration in terms of the initial and final velocities and the elapsed time. Be careful with time units. -Use your result from part (b).

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11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Solution for part (d)

(8%) Problem 8: Starting from rest, your plane taxis to the runway. At a time to = 8.5 min later,
the plane is cleared for takeoff from rest and accelerates down the runway with a constant
acceleration of a= 2.85 m/s? for a time interval t, = 45 s before taking off. Refer to the figure.
t= 0
t=t,
taxi
min
©theexpertta.com
E V 25% Part (a) Enter an expression for the plane's takeoff speed, v, in terms of given quantities.
= a (t,) v Correct!
E V 25% Part (b) Calculate the plane's takeoff speed, in meters per second.
= 128.25
v, = 128.3 V Correct!
E V 25% Part (c) Enter an expression, in terms of a and tą, for the minimum length of runway, dmin: this plane requires to reach takeoff speed with the given
acceleration and time interval.
dmin = 0.5 at? Correct!
> * 25% Part (d) Calculate the average acceleration of the plane, in meters per second squared, during the time period from when it begins to taxi until it
takes off.
Grade Summary
aavg =
Deductions
0%
Potential
100%
sin()
cos()
tan()
7
9
HOME
Submissions
Attempts remaining: 15
(0% per attempt)
cotan()
asin()
acos()
E
4
5
atan()
acotan()
sinh()
1
detailed view
3.
cosh()
tanh()
cotanh()
-
END
0% A
+
2
0%
O Degrees O Radians
vol BACKSPACE DEL CLEAR
3
0%
4
0%
Submit
Feedback
I give up!
Hint
Hints: 2 for a 0% deduction. Hints remaining: 0
Feedback: 0% deduction per feedback.
|-Use the definition of average acceleration in terms of the initial and final
velocities and the elapsed time. Be careful with time units.
|-Use your result from part (b).
Transcribed Image Text:(8%) Problem 8: Starting from rest, your plane taxis to the runway. At a time to = 8.5 min later, the plane is cleared for takeoff from rest and accelerates down the runway with a constant acceleration of a= 2.85 m/s? for a time interval t, = 45 s before taking off. Refer to the figure. t= 0 t=t, taxi min ©theexpertta.com E V 25% Part (a) Enter an expression for the plane's takeoff speed, v, in terms of given quantities. = a (t,) v Correct! E V 25% Part (b) Calculate the plane's takeoff speed, in meters per second. = 128.25 v, = 128.3 V Correct! E V 25% Part (c) Enter an expression, in terms of a and tą, for the minimum length of runway, dmin: this plane requires to reach takeoff speed with the given acceleration and time interval. dmin = 0.5 at? Correct! > * 25% Part (d) Calculate the average acceleration of the plane, in meters per second squared, during the time period from when it begins to taxi until it takes off. Grade Summary aavg = Deductions 0% Potential 100% sin() cos() tan() 7 9 HOME Submissions Attempts remaining: 15 (0% per attempt) cotan() asin() acos() E 4 5 atan() acotan() sinh() 1 detailed view 3. cosh() tanh() cotanh() - END 0% A + 2 0% O Degrees O Radians vol BACKSPACE DEL CLEAR 3 0% 4 0% Submit Feedback I give up! Hint Hints: 2 for a 0% deduction. Hints remaining: 0 Feedback: 0% deduction per feedback. |-Use the definition of average acceleration in terms of the initial and final velocities and the elapsed time. Be careful with time units. |-Use your result from part (b).
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