It happened AGAIN!!

[Jantar]

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.

I gave the formula in an earlier post:
V^2 = U^2 +2fs
In your example of 0.7G or 6.9 m/s/s and V=13.8 m/s

13.8^2 = 0^2 +2 x 6.9 x s

or s (distance travelled during braking) = 13.8 m

almost double the 7 m you claim sounds realistic.

[sAsLEX]

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.

hear about these magic physics defying bikes all the time in my special place.

Look at my own and Jantars calculations, and compare the Gs that we used referred to compared to what you would need to stop in7m. Then go and ask Rossi et al how many Gs they can pull.

[Chrislost]

On the way to work down the Onewa Road transit lane this morning, a cager, presumably tired of waiting in slow traffic pulls into my lane about 30-40m ahead of my. I react, and panic a little, try to emergency brake, but there's no hope really - my wheels lock, and I drop the bike (on the right side, AGAIN) and end up sliding 50m down the road.

They didn't even slow down. Presumably if he didn't see me coming up behind him in the left lane, then he was unlikely to see me sliding along behind him either.

The woman behind him in the other lane stopped, and gave me her details and his plate, so tomorrow I will be reporting the incident at the police station.

After three hours in A&E it was been decided I have soft tissue damage to my left wrist and right shoulder, and a graze on my right knee. Bike is once again missing right front indicator, right foot peg and has a bent brake pedal. And I've ruined another pair of jeans - I really should invest in better pants.

I'm normally pretty alert to people on that road, but this guy didn't show his hand - and I had actually clocked him beforehand, but he wasn't indicating, or head checking, or turning his wheels, looked like he was planning to stay where he was.

seen people do all sorts of werid things around northcote!

[imdying]

So, even accepting that 7m is a crazy figure, it's also worth noting that it's an irrelevant one in this context. Unless you've got a BMW with stopping radar, your reaction times are going to increase that considerably... so it relates to the OP how?