Question 932601: an airplane touches down at a speed of 55 m/s on a runway that is 600 m long. The plane can decelerate at a uniform rate of 2.50 m/s^2. Will the plane be able to stop before the end of the runway?
Answer by TimothyLamb(4379)   (Show Source):
You can put this solution on YOUR website! use one of the big 4 kinematic equations:
vf^2 = vi^2 + 2*a*d
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vf = velocity final
vi = velocity initial
a = acceleration
d = distance
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since the airplane is decelerating to zero, vf = 0
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0 = 55*55 + 2*(-2.5)*d
d = (-55*55)/(2*(-2.5))
d = 605 meters
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answer:
the airplane will run off the end of the runway before it stops
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