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post #16 of 35 (permalink) Old 01-04-2011, 05:19 PM
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my bike goez 10 billion mph

How many fps is that?!


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post #17 of 35 (permalink) Old 01-05-2011, 12:28 AM Thread Starter
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Originally Posted by Süsser Tod View Post
It was just sarcasm, I have no interest in something like that. I think that straight line speed is boring, what gets your heart pumping is acceleration and... The street is no place for that.

After a couple times I realized that the only thrill on straight line speed came from the "I'm going to die" factor, not because speed is exciting by itself (otherwise being on an airplane at 500+ mph would be exhilarating). On the track, any kind of it, you can get high doses of acceleration and excitement, and unless I were doing Texas mile kind of events, I have no need for a 240mph bike (is it even possible?).
these calculations have nothing to do with "adrenalin" rushes, I showed them for people to consider some factors when riding a motorcycle, and take those numbers into consideration when doing normal riding around town or country roads.

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post #18 of 35 (permalink) Old 01-05-2011, 12:51 AM
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Originally Posted by TCormier View Post
my bike goez 10 billion mph

How many fps is that?!
14.67 billion ft/s
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post #19 of 35 (permalink) Old 01-06-2011, 01:05 PM
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Ok those are scary numbers.. Got me thinking about how fast I can react to a sittuation.. and how much room I need to anticipate for. Results scared me enough to break out a calculator.. which almost never happens.

if going at 65mph your doing 95fps - That leaves very little room for error..
Considering the average Reaction time speed is 215 milliseconds.
Human Benchmark - Reaction Time Stats
*apply some cross multiplication (did I do this right?) and you travel 20 feet before your mind even comprehends what is happening..

at 100 mph you travel almost 32 feet. thats the leangth of a standard trailer that sits on the back of a truck.

(I hope my math is wrong)
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post #20 of 35 (permalink) Old 01-06-2011, 01:38 PM
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Quote:
Originally Posted by videoguy View Post
Ok those are scary numbers.. Got me thinking about how fast I can react to a sittuation.. and how much room I need to anticipate for. Results scared me enough to break out a calculator.. which almost never happens.

if going at 65mph your doing 95fps - That leaves very little room for error..
Considering the average Reaction time speed is 215 milliseconds.
Human Benchmark - Reaction Time Stats
*apply some cross multiplication (did I do this right?) and you travel 20 feet before your mind even comprehends what is happening..

at 100 mph you travel almost 32 feet. thats the leangth of a standard trailer that sits on the back of a truck.

(I hope my math is wrong)
Unfortunately you are exactly right. That's if you are looking at the road...
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post #21 of 35 (permalink) Old 01-11-2011, 03:46 PM
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And how fast can you close the throttle and get on the brakes?
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post #22 of 35 (permalink) Old 01-11-2011, 04:06 PM
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0.000000000000000000000000000000000005 secs


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And how fast can you close the throttle and get on the brakes?
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post #23 of 35 (permalink) Old 01-12-2011, 01:26 PM
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Consider how far ahead you can see/ scan in traffic/ on the street and recognise any type of hazard whether it be a turning car, gravel, animals, curve. Then realize the time/ distance it would take to react if something is in the way of your path of travel.
If you can't see far enough ahead just give yourself some time/ space.




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post #24 of 35 (permalink) Old 04-01-2011, 11:25 AM
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Quote:
Originally Posted by videoguy View Post
Ok those are scary numbers.. Got me thinking about how fast I can react to a sittuation.. and how much room I need to anticipate for. Results scared me enough to break out a calculator.. which almost never happens.

if going at 65mph your doing 95fps - That leaves very little room for error..
Considering the average Reaction time speed is 215 milliseconds.
Human Benchmark - Reaction Time Stats
*apply some cross multiplication (did I do this right?) and you travel 20 feet before your mind even comprehends what is happening..

at 100 mph you travel almost 32 feet. thats the leangth of a standard trailer that sits on the back of a truck.

(I hope my math is wrong)
Your math is wrong, and unfortunately it's optimistic. As vaguely addressed, unless you ride down the highway anticipating a deer to jump out every millisecond you ride(contrary to what people tell themselves nobody rides this alert) there is an even bigger delay.

Now add to the fact that the moment you have processed that something bad is happening, you don't instantly end up decelerating as hard as possible. There's time to go from on the throttle to off, as well as grab the brakes, and now how good are you at braking with serious mental pressure?


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post #25 of 35 (permalink) Old 09-03-2011, 12:22 PM
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Quote:
Originally Posted by binx_19 View Post
these calculations have nothing to do with "adrenalin" rushes, I showed them for people to consider some factors when riding a motorcycle, and take those numbers into consideration when doing normal riding around town or country roads.
How long does it take you to do the math? I'm sure by the time you have your mathmatical answer you would have already smashed into something


But seriously.. Thanks for the advice.. def a great sticky..

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post #26 of 35 (permalink) Old 09-03-2011, 04:29 PM Thread Starter
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How long does it take you to do the math? I'm sure by the time you have your mathmatical answer you would have already smashed into something


But seriously.. Thanks for the advice.. def a great sticky..
if you pay attention to your speed on a regular basis, there is limited calculations you need to do, and just assume that looking at your speedo x 1.5 is pretty close to feet per second. also why i broke down the numbers for common speeds.

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post #27 of 35 (permalink) Old 09-03-2011, 05:01 PM
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Quote:
Originally Posted by binx_19 View Post
if you pay attention to your speed on a regular basis, there is limited calculations you need to do, and just assume that looking at your speedo x 1.5 is pretty close to feet per second. also why i broke down the numbers for common speeds.
I liked your first post in this thread. It's a good post binx.

1.466 is the multiplyer for MPH to fps and you divide by 1.466 to go the other way. Average perception & reaction time is 1.6 seconds so if you were travelling at 60mph, 87.96fps, you would travel 140.73 feet just realizing something has come into your path and formulated what you are going to do about it. If you are anticipating an obstruction, such as approaching an intersection, you lose that first 1 second as your mind is already prepared to act.


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post #28 of 35 (permalink) Old 05-13-2012, 12:28 PM
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Also light travels at 186,000 miles per second. Sound takes almost 7 seconds per mile. This difference in speed between light and sound explains why some people appear bright until you hear them speak.

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post #29 of 35 (permalink) Old 01-07-2013, 12:28 AM
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Really a great post. you did a good job.
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post #30 of 35 (permalink) Old 01-07-2013, 12:52 AM
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Originally Posted by Süsser Tod View Post
. On the track, any kind of it, you can get high doses of acceleration and excitement, and unless I were doing Texas mile kind of events, I have no need for a 240mph bike (is it even possible?).
Yes, on salt no less.


I don't think the bikes are getting to 240 in the mile. Alcohol drag bikes hit that....on 1,500 yrds.

Methinks that would qualify as exciting.

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