Answer:

Explanation:
For this problem, we can use Boyle's law, which states that for a gas at constant temperature, the product between pressure and volume remains constant:

which can also be rewritten as

In our case, we have:
is the initial pressure
is the initial volume
is the final pressure
Solving for V2, we find the final volume:

To solve this problem it is necessary to apply the equations given from Bernoulli's principle, which describes the behavior of a liquid moving along a streamline. Mathematically this expression can be given as,

Where,
Pressure at each state
= Density
Velocity
Re-organizing the expression we can get that

Our values are given as


Normal Conditions
Replacing we have,


If we consider that there is a balance between the two states, the Force provided by gravity is equivalent to the Support Force, therefore

Here the lift force is the product between the pressure difference previously found by the effective area of the aircraft, while the Force of gravity represents the weight. There,


Equating,



Therefore the weight of the plane is 14535N