News for hackers. Stuff that matters.

A comment on Forget self-driving car anxiety: In the early days human drivers were the fear. Parent comment

Re:Forget self-driving car anxiety: In the early days human ... by Retric on Monday November 07, 2016 @06:05AM (#12890192)
Total kinetic enegy has little to do with it, a car can kill someone at 1MPH by running them over. At 30+MPH a cyclist can easily kill themselves by hitting something head first even with a helmet. Simple truth is only an idiot goes 30MPH in a bike lane where they can easily hit someone.
[ Parent | on HN ]
Re:Forget self-driving car anxiety: In the early days human ... by mduerksen on Monday November 07, 2016 @08:58AM (#12891002)
30+ mph! Thats tour de france velocity with a lot of kinetic energy (albeit still less than a car at 10mph I think).
[ Parent | on HN ]
Re:Forget self-driving car anxiety: In the early days human ... by Retric on Monday November 07, 2016 @10:29AM (#12891787)
Sprinting at 30mph expecally down a hill is vastly easer than mainting that for the long term.

Many of these people where not going all that fast. https://en.wikipedia.org/wiki/List_of_cyclists_with_a_cyclin...

[ Parent | on HN ]
Re:Forget self-driving car anxiety: In the early days human ... by palunon on Monday November 07, 2016 @09:40AM (#12891287)
Well, an 80 kg cyclist+bicycle system at 30mph has about 7 000 joules of kinetic energy.

A 1 ton car at 10 mph has 9 000 joules of kinetic energy, so about 30% more.

[ Parent | on HN ]