Edexcel Mathematics: Mechanics M2 (Not IAL) - 16 Jun 2017 [Exam Discussion]

Nah just normal further maths, I picked mechanics so I had to do M3 and M4

oh madness lol, so you do noo stats?

Nah I did S1 last year but that's it

I realised halfway through doing the truck & trailer question I was using sintheta= 1/9 instead of 1/14 as stated in the question for some reason lmao. Luckily I noticed but damn time was a bit stressful in this paper.

Sin theta was 1/9 lol, I'm guessing you meant the other way around

Sin theta was 1/9 lol, I'm guessing you meant the other way around

Lmao I got so worried reading this as I recall using 1/9

ill be lucky to pass

I think I've messed up cause I need an A* for my university offer. I basically panicked when I did the lamina and this resulted in so many careless mistakes. In question 3, I integrated 3t^2-6t+21 - I copied the question wrong and wrote 6 instead of 16 for my coefficient of "t" This meant my distance between 7/3 and 3 was 468/27 or something like that. Essentially correct method but wrong coefficient and then in the last part of that question, I copied my integral of 3t^2-6t+21 instead of 16t (cause' I'm an idiot) but still managed to prove that P doesn't return to origin cause I got 2 imaginary roots and t=0 so doesn't return to origin. In question 5, my value of R was basically correct method all the way through until the end when 15g=7R/2 and then when I multiplied across to find R, I forgot my g. So my R was 30/7. In (b) I carried forward my answer and so got a wrong angle of Beta. My value of Tcos(Beta) was negative and I realised it was wrong but I couldn't find my mistake in part (a) and was running out of time so I just ignored the negative in my value of Tcos(Beta) and calculated Beta by diving an expression of Tsin(Beta) by Tcos(Beta) to get tan(beta) so just found a value of beta that was like 42.8 degrees. Yeah those were all of mistakes in the exam. How many marks do you think I've lost guys? I'm really scared cause' I need an a*