He did by stating 0.8G as the likely decell figure. Sprotbikes on sticky rubber might push 0.9 or closer to one on decent tarmac.Originally Posted by FROSTY
Wheres JRandom he would enjoy mspaint physics!
Kiwi back at home!
He did by stating 0.8G as the likely decell figure. Sprotbikes on sticky rubber might push 0.9 or closer to one on decent tarmac.
Wheres JRandom he would enjoy mspaint physics!
Kiwi back at home!
A quick question is this a : 1. See cones and brake
2. or ride towards me and brake when I drop this flag?
As one removes the reaction time Frosty or Jantar alluded to. Oh and good on you for helping out the newbies!
LOOK.. ZOMBIES!
welcome to Auckland...
Weekend cruiser
back on topic.... i also ride down this road every day, and have lost count of the close calls that i have had/witnessed. i'm glad that both rider and bike aren't too badly hurt, but i am worried about the emergency braking skills of alot of riders out there(including myself). what is the best way to learn these skills? should i go to the wednesday mentor ride? i am not a complete nooB but have never been shown any proper skills. for all i know, i may not be doing anything right.
gee wizzz
Yep--go to the mentor ride--also give The stranger a pm--theresa ride rite course this weekend.
In my opinion having travelled that section of road a fair number of times there are a fair few reasons for slowing down to 30 km/h on that bit of road.
1) coming up to intersections cars turning left into a side road fromtheir enforced 10km/h grind will dive over 100 odd meters early.They DO look but you are aproaching faster than they expect you to be-even doing 50km/h
2) the left lane is always the 'dirty" one for some reason its greasier -dunno why.
3)The left lane seems more "banged around"
My personal observations
To see a life newly created.To watch it grow and prosper. Isn't that the greatest gift a human being can be given?
Kiwi back at home!
get some cones, cans or other markers.
Go down to an empty industrial estate in the weekend.
Practice your braking from 20, then 30 then 50 kmh etc seeing how close you can get your stopped cone to the braking cone......
e mare libertas
I'm here, I'm here. Yes, your physics were charming, old boy. Lovely. Straight A stuff. I'll be sure to call on you for an answer the next time you stick your hand up in class.
Might I recommend MathML in future, though?
I'm living in Birkenhead at the moment and doing the same ride down the Onewa Rd transit lane on the Snail every morning. (Into town - I don't work at Navman any more.) With all due respect to Sycophant, I think he needs to practice his braking and swerving. It'd be pretty unusual for a car to pull out in front of you there and not leave room to filter around it. You just have to stay on the ball.
And if he braked hard, but his rear wheel didn't leave the ground, then he wasn't braking that hard...
Of course, if a car drives straight into you, it's another matter entirely. That doesn't seem to be what happened, though.
kiwibiker is full of love, an disrespect.
- mikey
Iiimbecile-baiting since 2007
15m? The LTSA claim the total stopping distance, including reaction time, at 50kph is about 38m. That's 'cos the LTSA, in their quest to adopt the lowest common denominator use a 1.5 second average reaction time. The UK's road code use a 0.7 second reaction time.
I also, for a laugh, tested my crappy old 1991 non-ABS Toyota Camry. It runs on shitty half-worn tyres and I tried it out on a road surface comparable with the average surface you'll find in NZ (i.e. a goat track). I could stop from an indicated 50kph in under 7m. Using the the UK's road code reaction time, my total stopping distance is a fraction under 17m. That's a far cry from the 38m the government parrots.
The LTSA's figures, like most other things they do, cater only to the absolute lowest common denominator. For stopping distances, they work on that achieved by a fully-laden logging truck being driven by a drunk brain-dead government minister (I appreciate the terms "minister" and "brain-dead" are interchangable).
Check this out for more info.
Forum whore
That's pretty impresive.
Forum whore
I take it you mean 'seconds' and not metres?
Iiimbecile-baiting since 2007
No, I mean metres. Most cars will stop a hell of a lot faster than you think provided they've got half decent brakes and the driver has thr will to use them.
Forum whore
And the sky is what colour on the planet you did this on?
L-Plate Rider
7m sounds realistic to me, put your geek goggles on..
50km/h is 13.8m/sec and if the car can brake at 0.7G then its slowing down at 6.9m/sec per sec (1G=9.8m/sec per sec)... I can't and can't be arsed remembering the formula for working out distance travelled but using my best guestimate he'll be stopping in under 10m if his initial velocity is 13.8m/s.
stormrider
Another option (though only as a last resort) is to hit the offending car & turn it into a police/insurance matter. The chances are that you will come out of a low speed hit fairly well especially as you are both moving in the same direction.The damage to your bike should be comparable to what you have sustained by comming off .This also puts the car driver at fault as far as insurance is concerned thereby making him pay for the damage to your bike.
This will then mean that the offending car driver has to pay for his mistake via his insurance & the police.
bikes and babes are best naked
I found I had a fluffy seam when my crotch got wet.
His Excellency
Glad your OK.
Just being nosey.... Do you ride with a headlight on?
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