How fast have you gone on your bike?
04-26-10, 09:37 PM
#126
Has coddling tendencies.
Back in 2000, riding across the country, I was going down the continental divide on a super smooth highway and hit 54 mph on my road bike. I was in a tuck, and the front started to lift and bounce a little-- my body was creating lift, like a wing. I sat up, creating enough wind resistance to slow the bike and then eased into the brakes. I keep it under 45 mph now.
Gordon Harris
www.bikenewengland.com
Gordon Harris
www.bikenewengland.com
04-26-10, 10:14 PM
#128
Mountain Man
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Only about 45mph, but regularly hit 30 coming off of campus going home :thumbsup: Cruise the flats at 16, maxed out at 22.
04-26-10, 10:49 PM
#129
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04-26-10, 10:55 PM
#130
Mountain Man
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04-27-10, 12:53 AM
#131
Junk Mile Junkie
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44.7 Mostly, I go VERY slow down the hills so I can enjoy them for as long as they sucked going up....
I had something lock up my RD last year, sucked it into my spokes, locked up my wheel going about 15 maybe. All I could think about is what that would have been like going 45 down a hill. Gives me the chills.
I had something lock up my RD last year, sucked it into my spokes, locked up my wheel going about 15 maybe. All I could think about is what that would have been like going 45 down a hill. Gives me the chills.
04-27-10, 04:53 AM
#132
Peloton Shelter Dog
04-27-10, 05:58 AM
#135
SLO-1
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https://www.mathexpression.com/negative-slope.html
you're not wrong, but he's more right.
Now, if 2 is divided by 0, we can roughly say that we will get an infinitely large number.
Why roughly? This is because it would be more accurate to say that the number is 'undefined'.
Why roughly? This is because it would be more accurate to say that the number is 'undefined'.
04-27-10, 07:54 AM
#138
Junk Mile Junkie
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I love that. I'm going to try that on my wife. "Honey, you're not wrong, I'm just more right."
Google found https://cstl.syr.edu/fipse/grapha/Unit4/Unit4b.html
Determining Whether the Slope of a Line is
Positive, Negative, Infinite or Zero
Up to this point in this unit, our examples all had positive slopes. Let's take a moment to look at what happens when a line has a negative slope.
Keeping in mind that the slope is given by:
In the figure , the slope of the line is:
The slope of this line is negative.
Pattern for Sign of Slope
If the line is sloping upward from left to right, so the slope is positive (+).If the line is sloping downward from left to right, so the slope is negative (-).
In our pizza example, a positive slope tells us that as the number of toppings we order (x) increases, the total cost of the pizza (y) also increases.For example, as the number of people that quit smoking (x) increases, the number of people contracting lung cancer (y) decreases. A graph of this relationship has a negative slope.
Two Other Cases to Consider
When the line is horizontal:
We can see that no matter what two points we choose, the value of the y-coordinate stays the same; it is always 3. Therefore, the change in y along the line is zero. No matter what the change in x along the line, the slope must always equal zero.
Zero divided by any number is zero.
Horizontal lines have a slope of 0.
When the line is vertical:
In this case, no matter what two points we choose, the value of the x-coordinate stays the same; its is always 2. Therefore, the change in x along the line is zero.
Since we cannot divide by zero, we say the slope of a vertical line is infinite.
Vertical lines have an infinite slope.
You are now ready to try a practice problem. If you have already completed the first practice problem for this unit you may wish to try the additional practice.
Google found https://cstl.syr.edu/fipse/grapha/Unit4/Unit4b.html
Determining Whether the Slope of a Line is
Positive, Negative, Infinite or Zero
Up to this point in this unit, our examples all had positive slopes. Let's take a moment to look at what happens when a line has a negative slope.
Keeping in mind that the slope is given by:
In the figure , the slope of the line is:
The slope of this line is negative.
Pattern for Sign of Slope If the line is sloping upward from left to right, so the slope is positive (+).If the line is sloping downward from left to right, so the slope is negative (-).
In our pizza example, a positive slope tells us that as the number of toppings we order (x) increases, the total cost of the pizza (y) also increases.For example, as the number of people that quit smoking (x) increases, the number of people contracting lung cancer (y) decreases. A graph of this relationship has a negative slope.Two Other Cases to Consider
When the line is horizontal:
We can see that no matter what two points we choose, the value of the y-coordinate stays the same; it is always 3. Therefore, the change in y along the line is zero. No matter what the change in x along the line, the slope must always equal zero.
Zero divided by any number is zero.
Horizontal lines have a slope of 0.
When the line is vertical:
In this case, no matter what two points we choose, the value of the x-coordinate stays the same; its is always 2. Therefore, the change in x along the line is zero.
Since we cannot divide by zero, we say the slope of a vertical line is infinite.
Vertical lines have an infinite slope.
You are now ready to try a practice problem. If you have already completed the first practice problem for this unit you may wish to try the additional practice.
Last edited by Tulex; 04-27-10 at 08:09 AM.
04-27-10, 10:18 AM
#141
Skibby
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I did actually hit that. I also had a very strong Chinook wind and was coming down the steep part of the ride right past peak to peak highway on long straightaway. Typical speed was around 45 mph for that part, with no wind, but there was about a 30 mph tailwind propelling me. The climb up into that wind was a pain, though. I miss that ride, alot.
04-27-10, 10:21 AM
#142
Skibby
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Sorry, that last reply was to Recon455, in Boulder.
04-27-10, 10:40 AM
#143
Bromptoneer
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Are you guys arguing about the math of the slope of falling out of an airplane on a bike?
04-27-10, 12:21 PM
#146
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04-27-10, 12:23 PM
#147
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On the Death Ride, I pushed 50 going down Monitor Pass. It was sort of cool at the time, but thoughts of errant squirrels and other things keep me well under that on downhills these days.
04-27-10, 12:38 PM
#148
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No, they're arguing about the slope of a vertical line, since falling out of an airplane you would have a curve, not a straight line as your horizontal velocity decreases due to air resistance and your vertical velocity increases until terminal velocity.
Last edited by wens; 04-27-10 at 12:42 PM. Reason: brain fart
