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re: what math do you use regularly?
Posted on 10/8/20 at 10:11 am to Obtuse1
Posted on 10/8/20 at 10:11 am to Obtuse1
You use cosine every day. If I’m doing 80mph in a 70 zone, and the cop is 30deg off from my directional velocity, will I get a ticket? No, cosine of 30 (off the top of my head) is about .85 and the cop would be reading around 70 mph.
2
Posted on 10/8/20 at 10:14 am to The Goon
I found the probability distributions challenging - although I took probability theory during a summer course where my brain had a lot of extraneous substances taking up space...
Posted on 10/8/20 at 10:51 am to The Goon
quote:
You use cosine every day. If I’m doing 80mph in a 70 zone, and the cop is 30deg off from my directional velocity, will I get a ticket? No, cosine of 30 (off the top of my head) is about .85 and the cop would be reading around 70 mph.
Then you realize that MPG is highly influenced by aerodynamic drag and that drag increases exponentially with MPH. That extra 10 mph equates to almost a 33% increase in aerodynamic drag on your vehicle. You can gain a significant amount of MPG by sticking to 70...
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