A package is dropped from an airplane flying horizontally. As the plane continues on, where will the package hit the ground with respect to the plane? (ignore air resistance) Position A
Position B
Position C

Position B

Explanation:

The package when it is dropped from the airplane will still be traveling  forward at the same speed as the aircraft. Since air resistance is ignored there is nothing affecting its horizontal velocity, so the package will hit the ground underneath the plane as they both move forward.

weight of the box is given as

here this is placed on the inclined of angle 42 degree

now this weight will have two components one is along the incline other is perpendicular to it

so here we need to apply a force parallel to incline opposite to its component of weight

so here the component of weight is given as

here we have

so it requires 75 n force to move it upwards

it's when something is going so fast it makes a loud noise, breaking the sound barrier, for example: a jet makes a loud noise, not only cause of the jet but because they reached a point where they went so fast that you can year the noise from various parts, kinda like a police car, lets say the car was going   so fast that you hear the siren of the cop car right next to you, but the car is probably a mile a way, it's cos the siren was next to you a few seconds if you understand me