## Answers

The main property of projectile motion is; its changing velocity along y-axis and its constant velocity along x-axis .. but in case of motion of aeroplane , its both (along x-axis and y-axis ) are changing .. so its not projectile motion.

No because the trajectory of a projectile is pre determined ... however the motion of a crashed aeroplane is a projectile.

No because no influence of gravity again all as it has its own force greater than influence of gravity.

As per the definition of projectile ,anytng projected in air is a projectile,but aeroplane is not a projectile since it is a sort of guided motion where gravity has no role to play and also the horizontal acceleration is non-zero,the path curved out by it is not a parabola at all.

its not projectile since we apply force on projectile but in case of aeroplane it apply force of exhausting gases and its case of newton's third law and Bernoulli's theorem.