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modify delete 17466 - from B.H. (U.S.) - 2014-11-03
Physics : "Physical Science quesiton"

An airplane has a takeoff speed of 80 m/s which it reaches 35s after starting from rest. What is the minimum length of the runway?


17466 -
modify delete 19990 - Reply from Gursafal , 18 y.o. (India) - 2017-07-03

let v=80m/s
u=0m/s
t=35s
we know that v=u+at
so 80=0+a*35
so a=80/35
now s=ut+(0.5)at^2
after plugging the values you get s(distance)= 1400m

17466 -
modify delete 17702 - Reply from Anthony (France) - 2015-05-04

Is an aircraft able to land on 250m while flying at a speed of 180 knots ?

17466 -
modify delete 17638 - Reply from Felicity (USA) - 2015-03-08

The minimum length of the runway is 400 meters. Or miles. Or whatever you meant by m.



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