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CIE physics paper 2

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falafail:
the exam's after tomorrowwwwwwwwwwwwwww. :-\
so if you're doing past papers or whatever, post the tricky questions here.
and if you're revising, post about stuff you think is important, or stuff you don't get here.
etcetc

maybe we can help each other get awesome grades ;D

Tumble Bug:
please check june 2002 paper 2 ques no 3 b (iii) how will  v solve this...i suppposed  x from the pivot ...but... nuthing
 the ans 108cm

falafail:

--- Quote from: Tumble Bug on November 14, 2009, 03:17:07 pm ---please check june 2002 paper 2 ques no 3 b (iii) how will  v solve this...i suppposed  x from the pivot ...but... nuthing
 the ans 108cm


--- End quote ---

okay, let's assume the distance from x to the center of gravity is d.
so 950d = (570 x 0.4) + (380 x 2.1)  <-- you use 950 because it's the weight, so it acts on the center of gravity. and 2.1 because it's 2.5 - 0.4
then you just solve for d.
the answer is 1.08 m.

Tumble Bug:

--- Quote from: falafail on November 14, 2009, 03:25:40 pm ---okay, let's assume the distance from x to the center of gravity is d.
so 950d = (570 x 0.4) + (380 x 2.1)  <-- you use 950 because it's the weight, so it acts on the center of gravity. and 2.1 because it's 2.5 - 0.4
then you just solve for d.
the answer is 1.08 m.

--- End quote ---

*gasp* OMG i really AM a blonde!! :o  :P

thanks a bunch!! :)

falafail:

--- Quote from: Tumble Bug on November 14, 2009, 03:31:37 pm ---*gasp* OMG i really AM a blonde!! :o  :P

thanks a bunch!! :)


--- End quote ---

s'okay, i cheated :P hahaha

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