I had to tackle this problem put to me by one of my students during my tutoring session. Here is a nicely done solution provided by Jim Thompson as illustrated below.
Wednesday, September 24, 2014
Tuesday, September 9, 2014
I have just uploaded the Pearson Edexcel International AS & A Level Physics Past Papers from Jan 2014.
Download them to your computer by clicking on this link: http://goo.gl/hz79yb
* Please note that past papers and marking schemes made available here are for students and teachers for review only! Their copyrights are held by the respective owners or copyright holders.