difference and integral

i think today's physics test's mcqs were so crappy! and i realised i drew a normal contact force pointing outwards of the free-body diagram when it should point inwards! i was so blank when i saw the moments question! then there's something wrong with my projectile motion question. i knew there was something wrong with the answer, but i couldn't find the error in the steps =( worst of all, i left two mcqs blank on the omr sheet! can't believe i was dumb enough not to even shade something and leave it to 25% chance. oh but, i reached the gravitation question! mr kadir was saying during one lecture that 'at this rate, i don't think you'll reach the gravitation question.' and i'm proud to say that i think i've done it (almost) correctly.

shanghui was in the canteen after the test, and was making people feel dumb haha. anyway, he's so smart. he could do the moments question! we couldn't agree on the circular motion question on banking the road, but i do think i'm correct! hmph. the seven base units: kilogramme, second, metre, ampere, mole, candela and kelvin!

i had a bleeding thumb, but i didn't know what to do. i remembered i was once at swensen's with boonping, benjamin and ms pereira. she made us write down what was fun about school. i think english teachers really love making students write/reading what students write. so here i am, still writing away. let's play 'first impressions'! it's so fun. let's see, the earliest thing i can remember about boonping was that he was the one with a watch at the sec1 orientation camp.

yes! escape velocity on earth is 11.2 km/s! my answer was 1.12 X 10^4 m/s!

hairy airy fairy