Speed and falling objects?

Question

Fighter aircraft flying at Mach 2 or 3 can not fire their guns as hey are travelling faster than the bullets. So, how come, when I drop something on a passenger plae, it does not fall to te back of the plane, away from me, if I am travellin at great velocity?!

Answer 1

Because the object you drop has the same horizontal velocity as the plane; it is actually falling at a trajectory. As the object leaves your hand, the force of the seat pushing you forward (the plane's engines) makes your hand push the object forward at the same speed at the plane, and it keeps moving forwrd at that speed until it hits the floor.

Answer 2

Figher aircraft DO fire bullets at mach 2 or 3. The bullet velocity is equal to the speed of the aircraft + the speed of the bullet when it goes of the gun. It slows down eventually due to air resistance and friction.
They also use missiles.
And the tennis ball will fall vertically in the plane because it is in the same system of reference (and the air also move with the plane, and so do you, and so does the ball)

Answer 3

Well you see, when a fighter plane has to fire a bullet, it is the plane itself which is moving with a velocity greater than that of the bullet itself.

But in case of a passenger plane, the people seated inside the plane are at rest with respect to the plane even though they may be in motion wrt to a frame other than the plane. Hence, you seated on a passenger plane become a body at rest and an object u drop has a certain velocity greater than zero in the frame of the plane....so the body behaves in the same way as it would if u were sitting on a chair in ur room.

Dont forget that the earth is also a constantly moving body just like your plane and hence we are actually always in motion, but at respect in the frame of the earth.

Answer 4

The falling object is also travelling in the same direction, and at the same speed, as you when you let go of it so will appear to drop almost vertically within the plane. I will need to be convinced that fighter planes travelling at Mach 2 or 3 cannot fire their bullets.

Answer 5

The fighter jet could fire its guns at any speed since in its frame of reference the bullet is not moving relative to the jet before it is fired. For the same reason, when you drop an object inside a passenger plane, the object is travelling at the same speed as you so, relative to you, it has no horizontal velocity

Answer 6

The thing you drop is travelling at the same speed you are.

Fighter plane bullets are powered by an explosion, which gives a certain propelling force, this can be directly added to the speed of the plane, and in a vacuum would work perfectly. On Earth, air resistance slows down the bullet but not the plane because it has an engine.

Answer 7

I do not believe that the fighter cannot fire at any speed. The speed of the bullets will be the speed of the plane plus the muzzle velocity. However, the bullets will slow down due to air friction, while the plane will not, so it's conceivable that the plane will catch up to the bullets. However, chances are that by the time that happens, the bullets will have reached their target or they will have dropped down out of the plane's path.

Answer 8

properly the rock is way less effected via the air resistance, because of this it falls speedier. even as in a vacuum, mass would not count number in spite of the reality that. it truly is type of not user-friendly to appreciate because you recognize in case you've been to drop a feather and a rock from the appropriate of the Empire State construction, that the rock might want to land lengthy earlier the feather. the reason the feather takes so long is with the aid of the way a lot the air resistance consequences it. The feather reaches its terminal speed. Terminal speed is the speed at which the rigidity of air resistance = weight of feather. If we were to sum the forces interior the y on the feather, we get far going up, and Weight taking position. all of us recognize that the Sum of the Forces = ma. If the forces are equivalent, 0 = ma, so acceleration equals 0. without that air resistance retaining it back there is purely one rigidity appearing on it, the burden. So if: w = ma and w also = mg, we can plug in: mg = ma now we can cancel out the 1000's g = a So the products acceleration is only gravity. it really is likewise authentic for the rock, so they both fall on an analogous speed. wish this clears up any hardship you've with recognize-how this.

Answer 9

It is not necessary to invoke relativity to answer the question of the tennis ball on the plane. Newton's first law of motion will do.

"An object in a state of uniform motion will remain in that state unless an external force acts on it."
The ball and observer are travelling with the same velocity as the plane. When it is released the only external force acting on it is gravity, so it appears to fall vertically.

Answer 10

For the same reason that a bee flying around in your car does not hit the inside back window the air inside the car is travelling at the same speed as you and your car are are, so likewise inside a plane.