[net.physics] The Helicopter Riddle

ucinstr@ptsfa.UUCP (UNIX Class) (03/25/85)

Assume that I've rented a helicopter for 1/2 day.
Further assume that I've decided to suspend myself
(in the helicopter) over the statue of Liberty
for 4 hours. After 4 hours will I or will I NOT be
still positioned over the statue of Liberty?

Why or Why not?
-- 
Dave Grajeda	(415) 545-1034	Pacific Bell
				55 New Montgomery, Rm 810, SF, Ca 94105
...!ucbvax!dual!ptsfa!drg

gwyn@brl-tgr.ARPA (Doug Gwyn <gwyn>) (03/28/85)

> Assume that I've rented a helicopter for 1/2 day.
> Further assume that I've decided to suspend myself
> (in the helicopter) over the statue of Liberty
> for 4 hours. After 4 hours will I or will I NOT be
> still positioned over the statue of Liberty?

Of course not; you will be chased away!

The question taken seriously is unanswerable.
Who knows whether or not you will do what you
decided to do, how you will maintain your position,
and what happens at the exact 4-hr. boundary point?

atst@ssc-vax.UUCP (Tom Pace) (03/29/85)

> Assume that I've rented a helicopter for 1/2 day.
> Further assume that I've decided to suspend myself
> (in the helicopter) over the statue of Liberty
> for 4 hours. After 4 hours will I or will I NOT be
> still positioned over the statue of Liberty?
> 
> Why or Why not?

The answer depends on how well the pilot flies the thing.  If he's a
good pilot then you will still be hovering over the statue after
four hours, otherwise you will be in the East River or Flushing Bay
depending upon the winds aloft.

js2j@mhuxt.UUCP (sonntag) (03/29/85)

> Assume that I've rented a helicopter for 1/2 day.
> Further assume that I've decided to suspend myself
> (in the helicopter) over the statue of Liberty
> for 4 hours. After 4 hours will I or will I NOT be
> still positioned over the statue of Liberty?
> 
> Why or Why not?
> Dave Grajeda	(415) 545-1034	Pacific Bell

    You will NOT be still positioned over the statue of Liberty, as the
police copters would have chased you off.
-- 
Jeff Sonntag
ihnp4!mhuxt!js2j
    "Parts is parts."-Jack the Ripper

werner@aecom.UUCP (03/30/85)

> Assume that I've rented a helicopter for 1/2 day.
> Further assume that I've decided to suspend myself
> (in the helicopter) over the statue of Liberty
> for 4 hours. After 4 hours will I or will I NOT be
> still positioned over the statue of Liberty?
		> Dave Grajeda	

One assumes that if you decided to suspend yourself, you will remain suspended
by means of mid-flight corrections. But that's the trivial answer.

    Otherwise, I'm afraid the prevailing westerlies will probably cause you to 
drift over the Atlantic.
    The answer the question is begging for concerns the earth rotating under
your stationary point.  Well, that only occurs in textbooks with friction-free
surfaces, and no climate.
	Sorry.  As they say, the question is moot.
-- 
				Craig Werner
				!philabs!aecom!werner
		What do you expect?  Watermelons are out of season!

sean@ukma.UUCP (Sean Casey) (04/04/85)

Ok if you take 4 hours and divide by half a day:

	4 /  ( 1/2 )

Ok so 4 divided by 1 is 4 so you get 4.
And   4 divided by 2 is 2 so you get 2.

If you put them together you get 42 which is the answer so you MUST
still be over the statue of liberty.
-- 
Sean Casey	UUCP:				  {hasmed, cbosgd}-\
			{ucbvax, unmvax, boulder, research}!anlams---ukma!sean
				{mcvax!qtlon, vax135, mddc}!qusavx-/

		ARPA:	"ukma!sean"@ANL-MCS  or  sean%ukma.uucp@anl-mcs.arpa