Answer:
The acceleration is 
Explanation:
From the question we are told that
The lift up speed is 
The distance covered for the take off run is 
Generally from kinematic equation we have that

Here u is the initial speed of the aircraft with value 0 m/ s give that the aircraft started from rest
So

=> 
Magic magic and more magic
The touch the solid, zig-zag line on the periodic table.
The magnitude of the net force could be anything from 89N to 341N , and it could be acting in ANY direction.
To solve both mysteries we need to know the directions of the original two forces.