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anjumuddin9
06.10.2019 •
Mathematics
Acessna aircraft has a liftoff speed of 120 km/h .
(a) what minimum constant acceleration does the aircraft require if it is to be airborne after a takeoff run of 240 m?
(b) how long does it take the aircraft to become airborne?
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Ответ:
2ad = V2^2 V1^2
V1 = 0
V2 = 120 km/h = 33.33 m/s
d = 240
inputting into the equation you get 2.31 m /s^2 as the acceleration
for B use another acceleration equation
a = change in V/ change in time
2.31 = (33.33 - 0) / (t2 - 0)
t2 = 14.43 seconds
Ответ:
2,10, undefined
Step-by-step explanation:
When x=-3 is 2
When x=-1 is 10
When x=0 is undefined