We know friction occurs beetween two solid objects but were not sure about a kite and the surrounding air, but weve got a sneaking feeling it does, like aerodynamics or something. Sensible answers please as this is for my 8 year old sons homework and he will be reading this, thanks
2007-01-26 20:19:50 · 15 answers · asked by weedraker 2 in Science & Mathematics ➔ Physics
Yes friction between the air and the space shuttle is the reason the craft glows red hot on re-entry. The SR71 spy plane was said to glow with air friction. Whilst a kite may not glow air friction remains.
2007-01-26 20:24:04 · answer #1 · answered by Anonymous · 2⤊ 0⤋
I am a former Airframe Repair Specialist in the US Air Force. I might be able to help you with this...
If you've ever seen a fighter aircraft in the air, sometimes you'll notice a contrail coming off the wings of the aircraft. When the wing of an aircraft cuts through the air, it causes friction, thus causing heat. The heated wing makes contact with the colder air, and thus you have a contrail.
A kite, is basically a form of a wing. It receives it's lift just as an aircraft wing would. Although this kite "wing" cannot slice through the air as fast as an aircraft wing, it still produces friction.
Hope this helps.
2007-01-26 20:32:53 · answer #2 · answered by C J 6 · 0⤊ 0⤋
When you fly the kite, you have to apply some force to pull it towards you. That force is the air drag on the kite and also the force of the friction offered by the air on the kite.
2007-01-26 21:26:23 · answer #3 · answered by nikonf105 2 · 0⤊ 0⤋
Yes. And between a car and the air too. That's why car makers try to make their models more 'aerodinamic'.
The only way to have no friction (0% friction) is to have nothing around the object, absolute emptiness, such as in outter space if you don't count the gravity force.
Newton's law says that if no force affects a body it will keep still forever, or keep moving forever if a previous force was made.
2007-01-26 20:54:42 · answer #4 · answered by Diomedes 3 · 0⤊ 0⤋
One of the episodes of mythbusters being aired at the moment has the ben franklin kite myth in it, they got voltage readings of close to 10 000v on a clear day mostly due to friction between the air and kite...
2007-01-26 20:31:58 · answer #5 · answered by legend 3 · 0⤊ 0⤋
Of course it does. The airflow over the back, curved out, side of the kite by friction creates a vacuum, the kite moves in to fill this space and hence you get lift. This is why aircraft wings are shaped the way they are on top.
Car carburettors also work this way, and use the vacuum to suck fuel into the engine.
2007-01-26 20:26:50 · answer #6 · answered by rinfrance 4 · 0⤊ 0⤋
Yes,friction occurs between Kite and air.This kind of friction is called drag force.
It is directly proportional to the velocity of the Kite.
2007-01-26 21:06:55 · answer #7 · answered by rr 2 · 0⤊ 0⤋
I think any object subjected to an air flow will result in friction, and extreme example is when a space craft re-enters the atmosphere, the friction can be seen to generate considerable heat
2007-01-26 20:29:04 · answer #8 · answered by Anonymous · 0⤊ 0⤋
All objects are subjected to friction, you can see that when rocks and cliffs are eroded with the wind or waves over vast periods of time. When a person goes out hiking on the English moors they come back with a 'ruddy' complexion which is due to the wind, and is a form of erosion. Farmers and graziers have ruddy complexions in the country. Have a good day!
2007-01-26 21:27:57 · answer #9 · answered by wheeliebin 6 · 0⤊ 0⤋
Sort of. Technically friction occurs all the time if two bodies of mass are in contact with each other (vibration of molecules). but in terms of motion, when two bodies rub against each other, friction occurs. A reslt of which is often the conversion of the kinetic energy (the rubbing) to heat energy (i.e. rubbing sticks together to make a fire.
2016-05-24 04:42:18 · answer #10 · answered by Anonymous · 0⤊ 0⤋