
mechanics questions
hello
Could somebody expalin to me how to work out question 3i of this paper
see link to paper below
http://www.mei.org.uk/files/papers/2011_June_m1.pdf
what are the general rules when working out questions like that?
I would also need help with
the mei jun09 paper question 2iii
im really stuck ....
http://www.mei.org.uk/files/papers/m109ju_livn.pdf
and i dont really get 4ii) in jun06
"deduce that...."
http://www.mei.org.uk/files/papers/m106ju_hwi4.pdf
last but not least
jun08 2i) how do you draw the sketch
http://www.mei.org.uk/files/papers/m108ju_vik3.pdf
thanks

Re: mechanics questions
Question 3(i). Force F is $\displaystyle \begin{pmatrix}2\\3\\4\end{pmatrix}N$ and Force G is $\displaystyle \begin{pmatrix}6\\y\\z\end{pmatrix}N$. Given that F and G act in parallel lines, find y and z.
Since F and G lie on parallel lines, they are proportional to each other, i.e., there is a number k such that 2k = 6, 3k = y and 4k = z.