Quote:
Originally posted by RiverPig:
Quote:
The treadmill continues at 80mph in reverse direction as the plane. BUT, you'll notice, the tires of the plane are now revolving at 160 mph.

So, multiple choice question:

The plane at this time is now moving at:

(A) 0 mph
(B) 80 mph
(C) 160 mph
If the tires are going 160mph how fast is the treadmill going?
Here's where you aren't getting it.

The treadmill is moving at 160mph relative to the plane's speed. The treadmill is moving at 80mph relative to you standing on the ground next to it.
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"Nature has constituted utility to man the standard and test of virtue. Men living in different countries, under different circumstances, different habits and regimens, may have different utilities; the same act, therefore, may be useful and consequently virtuous in one country which is injurious and vicious in another differently circumstanced" - Thomas Jefferson, moral relativist