A jet liner must reach a speed of 82 m/s for takeoff. If the runway is 1500 m long, what acceleration must the jet
have?

The acceleration that the jet liner that must have is 2.241 meters per square second.

Explanation:

Let suppose that the jet liner accelerates uniformly. From statement we know the initial () and final speeds (), measured in meters per second, of the aircraft and likewise the runway length (), measured in meters. The following kinematic equation is used to calculate the minimum acceleration needed (), measured in meters per square second:

If we know that , and , then the acceleration that the jet must have is:

The acceleration that the jet liner that must have is 2.241 meters per square second.

acceleration = (change in speed) / (time for the change)

change in speed = (20-120)= -100 m/s.

1.5 min = 90 sec

acceleration = -100/90 = -1.11 m/s^2.

we don't care about the 150kg or the 2,500 meters. they don't make any difference.

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