Jump to content

Win a Multiplex Fun Jet kit!


Recommended Posts

Advert


OK Clever clogs try this.If no one gets the answer do i get the kit?
Riddle,If a plane is sitting on a conveyor belt, and the belt will always move in the opposite direction of the plane, at the same speed, if the pilot throttles forward, does the plane have the ability to take off?

Now, before you answer, consider a couple of things first:

A plane is not a car.
A plane requires forward movement in order to generate lift. With that said, do not make any assumptions about the plane's forward movement (or lack of movement).
Assume the conveyor belt can be as long as a runway.
Assume the wheels are strong enough to spin at any speed without breaking.
Assume there are no snakes on this plane
Assume the wheels are free-spinning and are not locked/braked in any way.


So, what do you think?
Link to comment
Share on other sites

Ref GRE66's riddle. The term 'AeroPLANE' was originally applied to early fixed wing machines, and does not apply to helicopters, which are AirCRAFT. As to the original question, yes, the plane will take off. When the throttle is opened, whether it's propellor driven or jet, the motive force is applied to the air surrounding the craft, which will accelerate with respect to that air until its' AIRspeed is enough to give it lift. It's speed relative to the conveyor will be double its' airspeed (assuming no wind) but that doesn't matter a toss. OK, class is over, can I go and play with that fun jet now?
Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

 Share

×
×
  • Create New...