so 0.4x = int from 60to 0 v dv/ (80-v)
for the integrand you can either use long division or manipulate the function
so 0.4x = (-1 + 80/(80-v)) dv
0.4x = -v-[1/80(Ln(80-v)] dv
sub back in the limits 60 to 0
and you will end up with 80Ln(4)-60 but 0.4x = 80Ln(4)-60 so x = 127.25 approx.
2. Acc. is d(v)/dt
a= 80(-e^-0.4t * (-0.4)) = 0.4 * 80e^-0.4t but V=80-80e^-0.4t
therefore a = 0.4 * (80-V)
b) x - intgeral v dt where v=80(1-e^-0.4t)
dx = 80(1-e^-0.4t) dt
integrate 80(1-e^-0.4t) dt from 5 to 0 since its asking for the first 5 seconds
and you end up with 227m
c) V...
Engineering; it assume you have knowledge of extension 1 mathematics, my friend is doing it and he did 2u maths, he is struggling with the maths atm:/
should be few others
oh dude... that sbhs paper is sooo tough, i tried it today fuck me, some of that shit is extreme but i still rckn 19:/ is soo low, im sure people got in the 40's and stuff
lol when i meant the shit man, i was referring to how good it was, yeah i started playing in like year 8, lol shylu from our school got like 1000+ hours few times:L
yeah might as well, wouldn't mind doing some binomial and that,
who else is going
yeah it was good back in the days lol, css was the shit man, was soo addicted to that:L
yeah annoying 12yrolds are on everygame, yh that one lol iono if i shuld go:/
lol comn man, it was free on steam for a while probz due to lack of players:L, still fun to play, yeah by far the best cod:D you going to the lib sesh with keshav
two letters and four digits so first like theres 25 possible ways second one is already chosen
first digit theres 9 second 8 third already chosen and fourth 7
so 25*9*8*7 = 12600
i assume the digits are 0-9 LOL at me :L
wait you didnt mention if they repeat or not?