Physics Puzzle
- Thread starter Softus
- Start date
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Crockett wrote
Complete tripe.
Once the engines provide thrust it then becomes totally irrelevant what the wheels are doing in relation to the conveyor.
If the wheels from standstill to take off revolve at say an average of 1500 rpm without a conveyor then add a conveyor and the wheels will revolve at a much higher rpm depending on the rpm of the conveyor.
Off which you are obviously not one.
Which it will have once the engines provide thrust.
Which is impossible. Increase the conveyor speed as much as you like and you will only increase the wheel rpm.
It's simple really.
A bit like the noise you are making. lol
Complete tripe.
Once the engines provide thrust it then becomes totally irrelevant what the wheels are doing in relation to the conveyor.
If the wheels from standstill to take off revolve at say an average of 1500 rpm without a conveyor then add a conveyor and the wheels will revolve at a much higher rpm depending on the rpm of the conveyor.
Off which you are obviously not one.
Which it will have once the engines provide thrust.
Which is impossible. Increase the conveyor speed as much as you like and you will only increase the wheel rpm.
It's simple really.
A bit like the noise you are making. lol
not the plane, the axle inside the wheel is skiddingbut thats the whole point it is skidding internallyThe plane cannot travel farther than the turn of the wheel, unless it's plaining or skidding.
And the storm is getting quite bad so I'm logging off in a minute
The plane doesn't skid during take off it rolls, or rolling as we tell the control tower
So the axle is turning but not the wheels
The wheels have to turn balski or the plane don't go forward
Not if the no forward movement balski.
Very simple balski it doesn't matter if its impossible or not, the plane is stalled and not going anywhere.
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Lets do away with the wheels to make it easy for you guys, and add ski's
The plane is sitting on the conveyor doing 100mph backwards, ok so far
I start the engines and apply thrust, and eventually I should be able to stop the plane going backwards still ok with that so far I'm using all the engines energy just to hold my position.
Ok now the tricky part, the conveyor speeds up and so I need to apply more thrust to hold my position, an so on, the more thrust the faster the conveyor goes which neutralizes the thrust.
The conveyor could be doing a 1000mph, and if you looked at the speedo in the cockpit it would record a 1000 mph, but the plane is stationary.
Stationary plane = no wind speed, no lift, and no flight.
A guy put a plane on the top of a lorry, and drove at 100mph and the plane took off, even though the instruments said the plane wasn't rolling
The plane is sitting on the conveyor doing 100mph backwards, ok so far
I start the engines and apply thrust, and eventually I should be able to stop the plane going backwards still ok with that
so far I'm using all the engines energy just to hold my position.Ok now the tricky part, the conveyor speeds up and so I need to apply more thrust to hold my position, an so on, the more thrust the faster the conveyor goes which neutralizes the thrust.
The conveyor could be doing a 1000mph, and if you looked at the speedo in the cockpit it would record a 1000 mph, but the plane is stationary.
Stationary plane = no wind speed, no lift, and no flight.
A guy put a plane on the top of a lorry, and drove at 100mph and the plane took off, even though the instruments said the plane wasn't rolling
Lets say you had a toy plane in your hand with frictionless bearings on the wheels. If you stood at the side of an exceptionally fast conveyor belt travelling from left to right, do you not think that you would be able to hold the plane in your right hand, touch the wheels down on the conveyor belt and move the plane from right to left?
doitall.....Please watch this.....
http://www.youtube.com/watch?v=0ul_5DtMLhc
Listen to what the pilot says.
http://www.youtube.com/watch?v=0ul_5DtMLhc
Listen to what the pilot says.
Is this a good time to ask how fast the conveyor belt is actually moving? A passing (alien) astronaut might observe it moving at 67,000 mph - sideways!
now youre being very silly, its a simple thing to understand.So the axle is turning but not the wheels
Why is the plane going backwards with no friction between the ski's and the runway?? do you understand the concept of friction?Lets do away with the wheels to make it easy for you guys, and add ski's
The plane is sitting on the conveyor doing 100mph backwards, ok so far
Why is the plane going backwards with no friction between the ski's and the runway?? do you understand the concept of friction?Lets do away with the wheels to make it easy for you guys, and add ski's
The plane is sitting on the conveyor doing 100mph backwards, ok so far
Because that is the speed of the conveyor, anything on it will be doing the same speed, and there's no friction because contact with the belt is static
how do you have contact without friction? the plane is floating not in contact due to the frictionless ski's
doitall..........Did you watch the video I posted above...?
The plane is not floating its parked on the surface, no different to being on the back of a lorry going up the M1
In the middle lane?
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