At the risk of feeding the troll, here is the math you are suggesting we do, which disproves all of your arguments. It pains me how confidently you speak of a topic you are clearly so uneducated about: your physics mentors should be disappointed in you.

Conservation of linear momentum:

m₁v_1i + m₂v_2i = m₁v_1f + m₂v_2f

Let the vehicle be m₁ and the human m₂. Let the human’s initial velocity be zero. Let us further assume an inelastic collision: the human and vehicle end up at the same final speed v_1f=v_2f=v_f.

Thus:

m₁v_1i = (m₁+m₂)v_f

What we are concerned of is the ratio of initial vehicle speed, v_1i, to post-collision speed v_f. Your argument is that a lighter vehicle will have a larger drop-off in speed, recovering energy and reducing the severity of the collision. If you were right, the ratio v_1i/v_f should be less than 1.0, and be significantly different for a heavy and light vehicle. We will prove this wrong shortly.

Rearranging:

v_1i/v_f = m₁/(m₁+m₂)

Already it is abundantly clear that when m₁ >> m₂, v_1i/v_f will be 100%. I will leave you no room for counterargument here by working two examples. Take the most popular pickup truck, the Ford F150, at 2125 kg. Take one of the smallest compact cars, a Honda Fit, at 1130 kg. Take the average adult human, at 65 kg.

For the F150: v_1i/v_f = 2125/(2125+65) = 97%

For the Honda fit: v_1i/v_f = 1130/(1130+65) = 95%

At 35 mph, that’s a difference in speed delta of 0.7 mph, which is absolutely insufficient to explain the delta in injury severity presented in this article.

This proves what everyone knew all along: vehicle mass is insignificant in crash severity with a pedestrian because the masses of the two objects are so different. When the masses are similar (e.g. a small car colliding with a big car) yes, mass is important. But that’s not what is being discussed and is not your argument.

I hope you go back to school and learn the basics before confidently acting superior. Take your downvotes and learn from this to do better.

Survivorship bias?

You know what else pisses people off: the fact that speeding kills 33 Americans every day and permanently disables dozens more.[1]

The downvotes on this comment are a testament to the privilege of drivers. It’s crazy how good people, who would otherwise not break the law, believe it’s their right to speed. And before someone tells me it’s a victimless crime I’ll remind everyone that speeding kills both those inside and outside of your car.

Two facts:

1. The average occupancy of a car in my North American city is 1.2 people per car. This does not vary much by city.
2. Autonomous vehicles will almost certainly be worse for traffic than human driven cars. They will circle empty with no passengers and drive to pick up passengers empty (dead heading) even with a fully rideshare system. If there is widespread private ownership of autonomous vehicles (and you bet your butt that car companies will campaign for this aggressively to keep sales up), the dead heading problems only multiply. If you don’t believe me, look up any recent literature on the topic: by most accounts it will be worse, not better. Dead heading is only the tip of the iceberg of problems there.

I don’t know, if I were surprised by a panther I think I would also be shocked and say holy shit, haha. How should I react to not get hirt?

The answer to why is billions of dollars of subsidies to the animal meat industry.

Where is this the case? Unimaginable here in Canada.

Yeah that topology is probably better described as burrito

Read the source more carefully

Tesla drivers have the highest accident rate. From Nov. 14, 2022, through Nov. 14, 2023, Tesla drivers had 23.54 accidents per 1,000 drivers. Ram (22.76)

Accidents only. Worst driver counts DUIs a d fines as well.

Saying maths is absolutely out of place here. Also taxes here aren’t nearly as complicated as the US and there are a number of free tools available to file by yourself.

In a word, yes. Subsides to the tune of 100s of billions of dollars a year across the USA.

Connect is a great android app where you can block instances. Though I agree this should be a site wide feature.

deleted by creator

TIL a 1.5 hour drive away from Toronto is “just West of Toronto”.

A free market requires stringent regulation to function humanely and morally. The two are at odds with each other. My final sentence is a critique of neoliberalism, an ideology in which regulation is reduced and power is given to corporate entities and away from regulators. It’s been impossible to escape in politics since Thatcher and Reagan, and leads to some of the worst aspects of today’s society that we havr to suffer. One of which is the poor people who bought a car assuming it’d be safe, just to find that the companies saved a quick buck to their loss. I hope the people win these lawsuits, but I doubt the justice system has the teeth (or willingness) to prosecute this negligence as it should be.

No, but it is the result of deregulation. Similar models sold in Canada don’t have this issue because (drumroll please), federal regulations require immobilizers on new cars. Free market at work folks.

I’m not sure if you’re joking, but in case you’re not, the bidet sprays clean water from the wall, not dirty water from the bowl.

Norway - r = ?

What they’ve done is reprehensible but this is simply misinformation, that livestream has been up for weeks.