# Answer to Question #71721 in Other Physics for mekhia davis-manning

Question #71721

An airplane starts at a stand-still and speeds up with an acceleration of 2.9 m/s2. If the runway is 158 m long, how long will it take for the airplane to reach the end of the runway.

Expert's answer

d=(at^2)/2

The time for the airplane to reach the end of the runway is

t=√(2d/a)

t=√((2(158))/2.9)=10.4 s

The time for the airplane to reach the end of the runway is

t=√(2d/a)

t=√((2(158))/2.9)=10.4 s

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