2 halves of a sandwich
Post me your hardest maths question you know
- Thread starter Jupiter
- Start date
2 halves of a sandwich
How long is the tread mill and which is going at which speed and ill give you an answer
1 metre and the Segway goes 0.9r mph.
Does it ever fall off the end?
Associate
- Joined
- 12 May 2005
- Posts
- 1,782
Prove
sum of 1 + 1/2 + 1/3 + 1/4 + 1/5 + ... + 1/n = log(n) + Y (Euler–Mascheroni constant)
Prove
sum of 1/n^3 to infinity = Pi^3 / 9
sum of 1 + 1/2 + 1/3 + 1/4 + 1/5 + ... + 1/n = log(n) + Y (Euler–Mascheroni constant)
Prove
sum of 1/n^3 to infinity = Pi^3 / 9
Am I missing something here???
£2 of the £27 is his tip, it's not in addition to £27
No.
The three men in effect pay £9 each (as they all got a £1 refund on the £10 each they paid) therefore the 3 men paid £9 each for the meal = £27 yes?
The waiter also kept £2 for himself which added to the £27 = £29 yes?
...so where'd that other £1 go?
Soldato
- Joined
- 14 Nov 2002
- Posts
- 7,775
- Location
- Under the Hill
hmmm your getting the idea, but still nope
please don't tell me you're playing with direction here
Soldato
- Joined
- 7 Jul 2009
- Posts
- 16,234
- Location
- Newcastle/Aberdeen
If a train is travelling at 60 miles an hour, and it passes a man carrying four oranges in one hand and six apples in the other, what is the time?
Seriously though, Simplex is probably the hardest thing i've actually 'done'. I can do this sort of thing, i just need to understand how it works, not just how to do it. Knowing why it exists helps too
Seriously though, Simplex is probably the hardest thing i've actually 'done'. I can do this sort of thing, i just need to understand how it works, not just how to do it. Knowing why it exists helps too
No.
Associate
- Joined
- 23 Mar 2009
- Posts
- 2,014
- Location
- Peterborough
ooooo volunteers to do my coursework lol, let me eat dinner and I'll pop one up i've already completed.
Theoretically after 1 hour, presuming you are using MilesPerHour for calculations as 1/0.9r = 0.1r
Computers mistake 0.9 recurring as 1 beacuse they have to truncate to a certain number of decimal places and then round the result. Otherwise they would need an infinite amount of memory in which to hold the infinite number of decimal places of the addition terms and the result.
If you were to put 1/0.9r into a calc it would come back as 1, but the segway would fall off but it would be completely dependant as stated on other variables such as the distance,friction etc..
if you want to get technical but yes it would fall off EVENTUALLY it could take seconds, minutes,years,lightyears, perhaps a number we can yet comprehend but it would happen 
LOL yes very funny.....
Same speed as this racing driver on his 2nd lap:
A racing driver had to have an average speed of 60mph across two laps in order to qualify for a race - he had engine trouble on the first lap so only managed and average of 30mph - how fast does he have to travel on the second lap in order to have an average speed of 60mph across both laps.
erm what?
Associate
- Joined
- 12 May 2005
- Posts
- 1,782
Soldato
- Joined
- 7 Jul 2009
- Posts
- 16,234
- Location
- Newcastle/Aberdeen
You can't divide by 0
a lightyear is a measure of distance, not time...
fine lets say parsec instead
based on movement of distance within an arcsecondI can! I did once, it was fun!
fine lets say parsec instead
A parsec is also a measurement of distance.
A parsec is also a measurement of distance.
Yes but i meant it in relations to the distance light travels within 1 second. perhaps lightseconds would have been more appropriate. I know what im thinking but i dont think its coming out right
You've phrased that slightly wrong I think.
He needs a speed of 90mph to average 60mph over the two laps, however, doing so would not allow him to qualify for the race.
What I think you intended to ask was: A racing driver had to have an average speed of 60mph across two laps in order to qualify for a race - he had engine trouble on the first lap so only managed and average of 30mph - how fast does he have to travel on the second lap in order to qualify for the race?