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Mathematics: Post your doubts here!
good luck with that O-Level seems like a piece of cake after taking the AS well i'm doing the AS-Level but i'll ask one of my friends ... when any of them wake up [i woke up early to study] -
Mathematics: Post your doubts here!
the link from the rule "Final Energy = Initial Energy + Driving force - Resistance force" ? or the one "Driving force - Resisting force = mass x acceleration"? so you get the final and initial energy using "K.E. [1/2 mass x velocity(squared) ] + P.E. (mass x gravity [10] x height)" and... -
Mathematics: Post your doubts here!
well this was a fun question :D the main thing is to know that air resistance is present the whole time P is in the air. (well that was my mistake then i started thinking about my next physics exam and drifted away thinking about the units i want to revise which made me notice) i'm so awesome... -
Mathematics: Post your doubts here!
bother? you aren't bothering me :) so first thing is writing the forces so that you wouldn't get confused by them, as the 5.5 N and the W N are pulling the particle upwards. then draw a line in the middle of the right angle to make 2 letter Z (one from AP1X to the line and the other from CP2X... -
i'm really going to get mad if i don't get an A in math AS after all the studying i did and...
i'm really going to get mad if i don't get an A in math AS after all the studying i did and still doing!- Pie-man
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Mathematics: Post your doubts here!
what are the most challenging exams for paper 4 that i can solve (note i said "that I CAN solve" :p and that had the differentiation and integration rules in them (can't remember name of that part) -
Mathematics: Post your doubts here!
well that part about the 2 at Sp and not in Sq i have no idea exactly, but the initial speed has to be 0 as if you take 3.5 instead you will be getting a different distance than 4.9 which you will then have to deduct the extra distance ... its just to not complicate things, its already... -
my neck hurts from look at past papers for about 12 hours now O_O .. never studied that much in...
my neck hurts from look at past papers for about 12 hours now O_O .. never studied that much in one day, lets hope i get that A in Maths AS- Pie-man
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Mathematics: Post your doubts here!
i just solved this but only got it on the second trial because at my first try i used 2 sec difference in the equation for SQ but then after checking the marking scheme it was supposed to be used in the equation for SP . (and i don't completely understand why until now) :S so here is what i... -
Mathematics: Post your doubts here!
oh good then my only mistake was not noticing that Vx is 0 ( hope i don't do these silly mistakes on monday ) :D thanks for the help -
Mathematics: Post your doubts here!
well this will sound really stupid...probably, why did we use (H-h) and not h immediately aren't i supposed to use the height from the ground to point B? -
Mathematics: Post your doubts here!
well can you please explain to me number 6 (ii) i know the answer and got it right but by complete luck and can't understand how he got it in the marking scheme. http://papers.xtremepapers.com/CIE/...S Level/Mathematics (9709)/9709_w10_qp_41.pdf -
Mathematics: Post your doubts here!
ok so i just solved it and all you have to do is get the total time it was going upwards which is 3 seconds, then you just have to subtract the time you got in (ii) for when they were equal which was 1.25 so you get 1.75 seconds and thats it ;) -
Mathematics: Post your doubts here!
yeah can someone please explain to me number 6 (ii) i know the answer and got it right but by complete luck and can't understand how he got to the steps in the marking scheme. Thank you :)... -
Mathematics: Post your doubts here!
the fastest way is to use lami's rule to get the angle opposite to P1 then get the angle AP1X using subtraction from 360 degrees, then lami again to get the value of W. -
"If you are not making someone else’s life better, you’re wasting your time." ~ Will Smith
"If you are not making someone else’s life better, you’re wasting your time." ~ Will Smith- Pie-man
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