naw components was really straightforward personally it seems like your tutor tried to teach you a shortcut before teaching the content fully; if you understand how negative vectors work then it'd make more sense and if you consider the 3u components form it's also nice
by 3u, do you mean like 3u maths?naw components was really straightforward personally it seems like your tutor tried to teach you a shortcut before teaching the content fully; if you understand how negative vectors work then it'd make more sense and if you consider the 3u components form it's also nice
no, neither of us did
yes
For me thats easy but like the harder qs with relative velocity i just cant get. Like when it comes to math and chem for the harder qs i just have intuition which allows me to lnow what to do but when it comes to physics its like all my intuition disappears and i have no clue whag to doincoming yap fest:
okay so here's what i do personally (easier than tip to tail + cosine and more relevant to module 5)
so you can consider each vector kind of like a right angle triangle. you have TWO perpendicular components (cause phys only does 2d vectors)
so you want to break down each vector intoand
components using trigonometry.
for instance, a vector angled at 30 degrees above the horizon with a magnitude of, say, 45 can be broken down into the component parallel to the horizon and the component perpendicular to the horizon
. View attachment 42620
for this, the perpendicular component is given bywhile the parallel component is given by
. with this, you can sum all the perpendicular components and parallel components separately and use pythagoreas to get the resultant (make sure to inverse tan the components to get the final vector)
example:
vector a has a magnitude of 75 and is pointing at N30E, vector B has a magnitude of 30 and is pointing at S45W.
View attachment 42621
you can sum the horizontal components as such:
and then vertical:
and then to get the resultant vector, you use pythagoreasand inverse tangent for direction
i suggest this method for two reasons
1. it's easier when you have many different vectors (collisions in module 2)
2. you will decompose vectors anyways in module 5 for projectile motion
ALSO I LOWKEY FORGOT BEARINGS BUT LIKE I HOPE THIS MADE SENSEyou can also make a table of the x and y components.
EDIT: PLEASE DO NOT FORGET YOUR AXIS LABELS LIKE I DID HERE I'M TOO CEEBS TO DO ANYTHING
hmmm do you have an example of one? is it like a qn where you're given "the velocity of a relative to b is ... and the velocity of a with respect to the ground is ... –> find velocity of b" ?
Wdym by interpret the difference? You should be able to tell just by looking at the lables of fhe axisI know this is the easiest thing ever but since we're talking abt physics someone pls tell me how interpret the difference between displacement time graphs, velocity time graphs and acceleration time graphs coz it makes sense until I'm not reading the theory and doing the questions by myself
the relationship within each is likeI know this is the easiest thing ever but since we're talking abt physics someone pls tell me how interpret the difference between displacement time graphs, velocity time graphs and acceleration time graphs coz it makes sense until I'm not reading the theory and doing the questions by myself
already??Biology test on tuesday.
For some reason I always think your a 2024erI had my first internal in wk 4bruh
i was supposed to have my perms and combs test last thursday but sir shifted it to friday this weekI had my first internal in wk 4bruh
, but i had my first adv test in wk4 too 
did u go well?? Rooting for u broalready got my marks back too
no i got 33/35, but like the highest was full marksdid u go well?? Rooting for u bro
no mod 1 - 2 is straight ass its like learning how to tie ur shoes so u can run in a marathon. phys is fun, just be good.
dawg ur basically ranked 2nd u can easily rank 1stno i got 33/35, but like the highest was full marks
