forces problem cant follow key | Mathematics | Page 1

lean yarrowBOT Jan 11, 2024, 2:57 AM

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tawdry geyser Jan 11, 2024, 2:57 AM

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idk what category this falls under

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idr know whats going on in the key

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can anyone explain it a little bit more?

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its kinda all over the place and too messy for my brain

dapper girder Jan 11, 2024, 2:59 AM

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i can help

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i think

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so you need to find the hypotenuse of the vertical and horizontal components

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the horizontal forces are equal to eachother as are the vertical

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first do you understand the finding the angles part

tawdry geyser Jan 11, 2024, 3:03 AM

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i get what shes doing until she writesfrom this part and below

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so yes i understand how she got theta 1 and 2

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and i understand that f1+f2+f3=0 and that f1+f2=-f3

dapper girder Jan 11, 2024, 3:04 AM

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let me get a sheet of paper

tawdry geyser Jan 11, 2024, 3:09 AM

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also why cant i just do -f1cos(7/25)

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for the x commponent of f1

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why do i need the tan thing

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nvm i get that

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dont explain that

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ok actually

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i understand everything in the key now

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except one thing

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@dapper girder

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why

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did she switch

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from -15 to 15 in the matrix

dapper girder Jan 11, 2024, 3:22 AM

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sorry

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had to do something

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the reason it’s negative is because it’s in the opposite direction

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that’s what im starting with

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@tawdry geyser does that make sense

tawdry geyser Jan 11, 2024, 3:30 AM

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i got it

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thanks

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no worries

dapper girder Jan 11, 2024, 3:31 AM

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sorry if i wasn’t helpful i got a million things going on

tawdry geyser Jan 11, 2024, 3:32 AM

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dapper girder sorry if i wasn’t helpful i got a million things going on

its no problem

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i got it myself tho bc im kinda impatient but maybe i should have just not posted it

#forces problem cant follow key