Wrong, the top of the plane is not moving with respect to the ground. It it was the plane would move from its position on the runway.
It's obvious that you are wrong Bill.
It it was the plane would move from its position on the runway.
no it wouldnt Bill.
the wheels of the plane that are in contact with the ground are moving at the same speed as the ground.
Not necessarily. If there is a tail wind the air speed may be less than the ground speed.
I think you have that backwards Bill.
a tail wind would cause the aircraft to have a greater air speed , ( speed it up )
a head wind would cause the aircraft to have a lesser air speed ( slow it down )
in a tailwind mechanical instruments would show a lesser air speed
( because there is less air pressure acting on the speed sensor / measuring device )
but the actual air speed
( of the aircraft )
would increase.
http://en.wikipedia.org/wiki/Tailwind A tailwind is a wind that blows in the direction of travel of an object, while a headwind blows against the direction of travel. A tailwind increases the object's speed and reduces the time required to reach its destination, while a headwind has the opposite effect.
This is probably just a minor error. Angular momentum is measured in degrees per second, or whatever units you using. The linear velocity of the inside and outside of the record will be different, but not the angular velocity.
No error
Bill , you need to refresh your studies.
http://en.wikipedia.org/wiki/Angular_velocity In physics, the angular velocity is defined as the rate of change of angular displacement and is a vector quantity (more precisely, a pseudovector) which specifies the angular speed (rotational speed) of an object and the axis about which the object is rotating.
as in the above the angular velocity of the top of the plane
is greater than the angular velocity of the ground.
also as above the angular displacement of the top of the plane is greater than the angular displacement of the ground.
its pretty simple to figure out.
I cant understand why you guys are having such a difficult time with it.
