Posted by **Max** on Tuesday, February 2, 2010 at 3:49am.

An airplane lands and starts down the runway at a southwest velocity of 41 m/s. What constant acceleration allows it to come to a stop in 1.3 km?

- Physics -
**drwls**, Tuesday, February 2, 2010 at 4:04am
Average velocity * time = stopping distance

(Vo/2) * t = X = 1300

Also, you can write Vo = a* t for the deceleration time.

The time t can be eliminated from the two equations, resulting in

(Vo/2)(Vo/a) = X

Vo^2 = 2 a X

Solve for a

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