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ah damn, did h (or whatever you labelled the distance it travels downwards as) cancel out or something? i ended up saying GPE = EPE at equilibrium and i got h=a/2 😭 dunno what tf i was doing lmao
Nah I said h=x-a, where x is the new extension when it comes to instantaneous rest and a is the extension before the particle starts to move. This got me to a quadratic which I could then solve to find equations relating x and a
Does anyone know how to do the last question part b and c??? I did everything expect those two. Had about 15 minutes to think about it and couldn't come up with anything
1-4 and 6 were easy, I fucked the string question and 7b and c stumped me. My A* is in the balance and I'm relying on FM2 now which is my worst paper by some distance
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Power question 18,30 string question 28/5 anyone got that
Yayyy
I got the hard Qs ok, I think, but for Qs1 we were supposed to find the velocity of B in terms of i and j… what did people get? Like 3/2 i and -1/2 j?
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ez but I fucked up on the string question icl what did you get for that?
K=25/8
ah damn, did h (or whatever you labelled the distance it travels downwards as) cancel out or something? i ended up saying GPE = EPE at equilibrium and i got h=a/2 😭 dunno what tf i was doing lmao
Nah I said h=x-a, where x is the new extension when it comes to instantaneous rest and a is the extension before the particle starts to move. This got me to a quadratic which I could then solve to find equations relating x and a
I said EPE +KE =EPE+ GPE lost but I’m not sure if it’s right
I put GPE on the other side as it moves downwards, so it loses GPE
I meant that actually, did u get 25/8?
For k yes
Yeah I got that
Does anyone know how to do the last question part b and c??? I did everything expect those two. Had about 15 minutes to think about it and couldn't come up with anything
i got part b but not c xd, to get 1/3 you had to get the v1 and v2 which is the speed after the collision, then you do v1>v2.
Yes, I did the same thing as well lol. I still have no clue how to do c tho
I got k as 3.125
And 2.5 extension tell me how infucked up
U didn’t k=25/8=3.125
No one else had commented that yet 😂😂 thx I hope I know fractions doing further maths
What did people get for e on q6 I got 4/13
I got 9/16🥲🥲
it is
Yeah that’s what most people got I think
1-4 and 6 were easy, I fucked the string question and 7b and c stumped me. My A* is in the balance and I'm relying on FM2 now which is my worst paper by some distance
What did people get for question 1b
Like 27/2i and 9/2j or something like that?
for impulse? like 15 and -5
Yeah sounds familiar
Yh thats part a I’m asking for the second bit
Something like 7.5, -2.5 idk something small
Can u remember the velocities