Plane and a conveyor belt |
Post Reply | Page <1 456 |
Author | |
MartinW
Moderator in Command Joined: 31 Mar 2008 Location: United Kingdom Points: 26722 |
Post Options
Thanks(0)
|
the whole point was that the speed of the aircraft is matched
Doesn't matter.
i.e +100 for the aircraft and -100 for the resistive force.. therefore, the overall force is 0 i.e no movement.
Except that there is no resistive force, the conveyor isn't a resistive force, thanks to the wheels bearings.
The wheels have bearings that enable them to spin freely. Essentially there is no resistance supplied by the wheels, so no resistance is transfered to the aircraft.
There is if cousre, but way less than would make a diferance.
|
|
Slopey
Moderator in Command AirHauler Developer Joined: 11 Jun 2008 Points: 8280 |
Post Options
Thanks(0)
|
Kelvin - your analogy with a person on a treadmill is incorrect.
If the person was on rollerskates, on the treadmill, that'd be correct. If the rollerskates had frictionless bearings, you could speed the belt up/down and you'd stay where you were as the rollerskate wheels will spin at the same speed as the belt. Now if you push yourself forward, then the belt speed will increase, but so will the wheel speed in response, so you'll still go forward as there's nothing to counteract your thrust input. The belt speeding up can't counteract it, as it can't transfer any force to you, only to the wheels which are touching it, and as they're frictionless, nothing gets transferred to the axles of the rollerskates. |
|
AirHauler Developer
For AH2 queries - PLEASE USE THE EA Forums as the first port of call. |
|
Post Reply | Page <1 456 |
Tweet
|
Forum Jump | Forum Permissions You cannot post new topics in this forum You cannot reply to topics in this forum You cannot delete your posts in this forum You cannot edit your posts in this forum You cannot create polls in this forum You cannot vote in polls in this forum |