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  1. wizteddy13

    Mechanics 1 P42 2014; Discussion!

    I swear, the paper may have been do-able, but this is one of the trickiest papers I've ever given. *sigh*
  2. wizteddy13

    Mechanics 1 P42 2014; Discussion!

    YES EXACTLY! Whew, glad I'm not the only one who did that. As I thought the equation was applicable from t=8 and onwards, so till t=27, the time is 19s. I integrated and put in values for t=19s, which is 40. something, and added 8 to it. I think I ended up with 48.9 or something.
  3. wizteddy13

    Mechanics 1 P42 2014; Discussion!

    Lol, I lost 2 more, I couldn't show for no 5, the last part. I realized that one 5 minutes after handing in the paper. Such sorrow :/
  4. wizteddy13

    Mechanics 1 P42 2014; Discussion!

    Yeah, I understand. BUT, if we use s(27), then we are finding the s covered 27 seconds AFTER the particle reached A. If we do that, aren't we overshooting the initial time frame of 0-27s? Plus, u said to subtract s(8), but those 8 seconds are BEFORE that equation for v (and hence the s equation)...
  5. wizteddy13

    Mechanics 1 P42 2014; Discussion!

    Dont beat yourself up bro...I realized how to prove that a=2 for the last question...10 seconds after I handed my paper in.
  6. wizteddy13

    Mechanics 1 P42 2014; Discussion!

    Was that sarcasm or a compliment? :P
  7. wizteddy13

    Mechanics 1 P42 2014; Discussion!

    But how? The initial 8 seconds is 8 m, yes. But the equation for v is applicable from point A ONLY, not before that point. At point A, already 8 seconds has passed....so :/
  8. wizteddy13

    Mechanics 1 P42 2014; Discussion!

    That shouldn't happen. TA sincos-1(2.4/3) - TBsincos-1(2.4/2.5) = 7 If u use 3.5 and 7.5 here, it equals 0.
  9. wizteddy13

    Mechanics 1 P42 2014; Discussion!

    Another thing? That question for distance from t=0 to t-27, what's that one?
  10. wizteddy13

    Mechanics 1 P42 2014; Discussion!

    YES! YES! YES! Most of my friends got 3.5 and 7.5, but that comes if u don't take weight into account, and you can't just ignore weight now! :D
  11. wizteddy13

    Mechanics 1 P42 2014; Discussion!

    What's the answer of No.3? As in, TA and TB?
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