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/sci/ - Science & Math

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4090975 No.4090975 [Reply] [Original]

Sophmore here (high school) trying to figure out the most basic and arbitrary physics problem. I just began physics the first time this year, and this is my first physics (Motion) problem that I have to solve, or rather, graph. I really don't understand how to graph the question. I don't want answers for my homework, because I know there's going to be comments like that. Just give me a hand, and yes I understand that this is pretty much preschool education for most of the people who frequent this board.

I'm expected to sketch a time-position graph. "Assume all motion is uniform and in a straight line"

A car is traveling north at a velocity of 50 km/h. It slows down to 30 km/h when it enters a school zone.

Where the fuck is the time in this? I assume that I need to average the 50 km/h because it says "Assume all motion is uniform". This is making my brain lag for some reason. I am top in my Math, Science and Socials class (Yea yea I know SS isn't a science) but for some reason this question it bugging me. Maybe I'm not eating enough fish, I don't know. All of the other problems I can graph and complete with relative ease.

>> No.4090987

>>4090975
Time goes on the bottom x axis, km/h goes in the y axis

>> No.4090989

/sci/ - highschool homework

>> No.4091013

Well, I would assume that it has something to do with time A and time B.

Time A is when you're out of the school zone, and Time B is when you're in the school zone. So prior to being in the school zone you're going 50 km/h, which you then decelerate to 30 km/h when you get in the school zone. Unless it's gradual I would assume it's just a simple spike.

But hey, I don't know anything about physics.

>> No.4091021
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4091021

The line should go from left to right. The Y axis is distance, the X axis is time. The line will go up more steeply until you get to the school zone, then become more shallow in the school zone as it takes more time to go the same distance.

>> No.4091032

>>4091021
Why does this picture always give me a boner?

>> No.4091038

>>4091021
What time intervals do I put on the x axis? 10-60 minutes? This is the part that's making me feel moronic, as it seems like I'm missing something that a normal person should not.

>> No.4091052
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4091052

>>4091038

Minutes. You won't spend hours in a school zone and seconds are too small.

>>4091032
Symmertical features, smooth skin, prominent breast and hips. You are likely a heterosexual male.

>> No.4091060

>>4091052
there's /sci/ for you

/b/fag here, i'm fapping

>> No.4091063

>>4091038
it says "sketch" a graph, not draw a detailed one, aka time is irrelevant, just label the x-axis as "time" then draw a straight line at 50 km/h on the y axis, then make the line drop sharply or have it gradually go down to 30 km/h, just depends on how big you want the acceleration to be.

>> No.4091087

>>4091063
Thank you. Helped a bunch. I didn't realize that sketch and draw were different with graphs.

>> No.4091099

I remember when I was a moron in highschool.

The question is probably fucked. They're likely not asking the question very intelligibly since I can't figure out what you need to know based on what you posted.

I wouldn't worry about the problem at all, unless you have to do it for credit. If so, just bitch at your teacher about it, and the depressed old person who wanted to do bigger things than teach your sorry ass will probably give up and give you the answer, or more importantly credit for the problem.

>> No.4091103

>>4091052
Is that a /sci/entific explanation of attraction? oO

No shit. Did you know most women's tits are asymmetrical?

>> No.4091108
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4091108

>>4091103
It's part of why that picture is attractive, the /sci/ reason for attraction would be much more complicated. But yeah, generally symmetry is attractive to humans.

She also has generally open body langue that suggest welcoming venerability. Her arms are spread with her elbows at her side, displaying her breast while being rather open.