You can view the page at http://mybroadband.co.za/vb/content.php/5201-Biker-nabbed-at-234km-h
-
Join the MyBroadband community
South Africa’s biggest forum. Discuss, discover, and connect with thousands of members.
-
Question of the Day: Will you be subscribing to the new Disney+ R49 streaming package?
Article: Biker nabbed at 234km/h
- Thread starter rpm
- Start date
A 49-year-old man was arrested for speeding on the N1 near Maraisburg offramp on Sunday, said Johannesburg metro police.
"He was caught doing 234km/h on his green Kawasaki Ninja motorcycle this afternoon [Sunday]. He had also covered the two letters of his number plate with black tape in a bid to avoid being caught on speed camera," said Chief Superintendent Wayne Minnaar.
"He was caught doing 234km/h on his green Kawasaki Ninja motorcycle this afternoon [Sunday]. He had also covered the two letters of his number plate with black tape in a bid to avoid being caught on speed camera," said Chief Superintendent Wayne Minnaar.
Kosmik
Honorary Master
ChilliGirl
PopCornPeddler
In addition to the speeding charges the cops should add reckless endangerment of other peoples lives...
marine1
Honorary Master
Nvm
Mila
Honorary Master
Seems like they are trying to out do each other.
Last edited:
Three quarters of motorcycle accidents involve hitting another vehicle. So yeah, hitting some at over 120KM speed difference does cause quite a few fatal accidents where they may kill others.
Kosmik
Honorary Master
Considering my fathers life was affected by a "stupid" ( read that as speeding, reckless and negligent ) biker, I have zero sympathy for them.
Most bikers are normal road users but you always get the odd "stupid" idiot.
Last edited:
I concur.
McSack
Executive Member
Much the same as all other road users methinks
Haldex
Expert Member
agentrfr
Executive Member
Ek = 0.5*m*v*v
So lets say this guy and his bike had a mass of 200kg.
Ek = 0.5*200*(234/3.6)^2
= 422 500 J, or 422.5 kJ of kinetic energy.
To give you and idea of how retarded that is, immagine a 5 tonne truck, lets see how fast that 5 tonne truck has to travel to have the same kinetic energy.
422 500 J = 0.5 * 5 000 kg *v^2
169 = v^2
13 = v
13*3.6 = 46.8 km/hr
So this bike going at that speed would STOP DEAD A 5 TONNE TRUCK HEAD ON (one of those sand carrying trucks) THAT WAS DRIVING AT 47km/hr.
Can you now use your noodle to figure out what would happen if this guy had hit a bakkie? Or even a hatchback? Or heaven forbid a human being?
No. I have zero sympathy for this guy.
So lets say this guy and his bike had a mass of 200kg.
Ek = 0.5*200*(234/3.6)^2
= 422 500 J, or 422.5 kJ of kinetic energy.
To give you and idea of how retarded that is, immagine a 5 tonne truck, lets see how fast that 5 tonne truck has to travel to have the same kinetic energy.
422 500 J = 0.5 * 5 000 kg *v^2
169 = v^2
13 = v
13*3.6 = 46.8 km/hr
So this bike going at that speed would STOP DEAD A 5 TONNE TRUCK HEAD ON (one of those sand carrying trucks) THAT WAS DRIVING AT 47km/hr.
Can you now use your noodle to figure out what would happen if this guy had hit a bakkie? Or even a hatchback? Or heaven forbid a human being?
No. I have zero sympathy for this guy.
Last edited:
Rocket-Boy
Honorary Master
That is probably the most intelligent argument I have ever seen for something like this. I salute you.
To add to that the only people I have ever heard of dying on motorbikes have been ones doing some stupid speeds, I know its tempting on a bike but its just not worth it.
SteveO
Expert Member
..He's more likely to kill someone with the golf compared to the bike. Those things at 80kmh are way worse than any bike at 200kmh, no point in having a 40 year old design on the roads.
The biker is an idiot though, if you gonna speed at least do it on an empty road or track
The biker is an idiot though, if you gonna speed at least do it on an empty road or track
scotty777
...doesn't know
Difference is that a bike isn't a rigid body... so most of the energy will go into the bike falling apart, and the rider liquidizing...
Either way...
given that on average reaction time for a human is 215ms .
at 234km/h, or rather 65m/s, that would mean anything in 13 meters and less from the rider and he will not react in time to it...
It is absolutely stupid to do that on public roads, much less on South African roads... All it takes is a pot hole at that speed to make you paint the town red...
If you wanna speed, go to a race track... That way you know the track will be in a good condition... I love speed, but I just can't imagine why a person would put so much trust in the SA roads. Even a glass bottle will be a deadly encounter.
agentrfr
Executive Member
Um no.
This is where an easy mistake can be made. Kinetic energy depends A LOT more on speed than it does mass. A citi golf has a gross laden mass of 1270 kg (http://www.um.co.za/specifications/volkswagen_citi_golf_1_4i_velociti_(2006).aspx)
So for a golf at 80km/hr
Ek = 0.5*1270*(80/3.6)^2
= 313 580.25 J
That bike had 422 500 J of kinetic energy.
That bike has 34.73 % more kinetic energy than the car, even though the bike is 1/6th the mass.
And this is ignoring the fact that cars have crumple zones to absorb most (70%) of this energy.
Granted, a bike has better brakes and is more manouverable (at low speeds), but if you are sitting on a missile, be it pointy or big and flat - either one is going to kill people.
A pointy hard missile is much more deadly than one that is a squishy in the front.
agentrfr
Executive Member
Agreed, some energy will go into snaping some bits, but the momentum of all the bits are still traveling forward.
I'd be interseted to know how much energy the bike would absorb snaping though, but I doubt very much it is any more than 10% of it's kientic energy at that speed. 422.5 kJ is a lot of energy.
Last edited:
You're looking at the kinetic energy, not the handling. A Golf's handling at 80kph is far worse than a bike's at 200kph.
