I’m talking about my previous response. I already said their answer is wrong.

Well that’s my point. The answer is correct in this specific case, because it’s already “built-in” so to speak.

You want to figure out distance per second. One way to do this is calculate distance apart at t=0,1,2…

The difference between each point would be the average speed over that second.

Using sqrt(b^2+g2):

t0 = 0 t1 = 1.554m
s1 = (1.554m-0m)/1s = 1.554m/s t2 = 3.108m
s2=(3.108m-1.554m)= 1.554m/s

As you continue this you will see they travel at a constant speed apart from each other. The reason this is working is because you need to divide distance by time. Dividing by 1 second won’t change the value of the number after you subtract. If you notice you can do (t2-t0)/2s and also get the same answer.

My mistake, I didn’t check his math. I thought he was saying if you take distance apart at t(n) and subtract distance apart at t(n-1) you will get distance/sec.

It’s the difference of distances apart over time. Aka how fast bf is moving away from gf, aka what the question is asking for.

Yes, if you want to be pedantic, velocity a vector with direction, so I guess you’d have to frame the question relative to either the boyfriend or girlfriend, but I don’t think the difference between speed and velocity is part of the question.

I am not supporting shell here, just asking a question.

If I am correct in assuming that shell produces 928 million tons (58,000,000 * 16) that means if the average American reduced their CO2 output from 16 down to ~13.3 then that would offset the total output of shell?

Is that amount of reduction even possible for the average American without giving up too much?

Obviously every company should do everything they can do lower emissions, but per person changes can have effect too. The problem is the vast majority of the 340 million Americans simply don’t care.