Answered: 131 Knots 295 185 5) 53 knols Brakes t…

College Physics

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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Question

A plane touches down with 4576 ft of runway and an 82 foot safety zone. The planes lands going 131 knots. It brakes for 18 sec before initiating reverse thrust for an additional 11 sec. After the total 29 sec the plane leaves the safety zone and hits a car. (Diagram)

What is the acceleration (a1) for the first 18 seconds?

What is the second acceleration (a2) for the 11 seconds?

131 Knots
295
185
5)
53 knols
Brakes t Ftrest
185
82 Ft
4576ft
V; = 131 lcnots/.gF
67.3922 mIs
Ve= 53kneds /1.944= 27.2656 mls
al
braking
d,=45764(3.281=1394.765 m
24.9936 m
for 18s
dz= 82 ft /3.281=
az= brakiny + reverse thost br29 -18s
lal=?
la,1=?
te= 29-18 1ls
de =1394.765 + 24.9936 = 1L119.76m

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