This was a pretty decent paper except for the last question about point masses and the coordinates. I got (2.1,2.9) as the center of gravity. Fair paper though.
WJEC Maths M1 Jan 25 Watch
- Thread Starter
- 25-01-2010 18:01
- 25-01-2010 19:13
(2.1, 2.9) FTW!!!!!!!!!!!!!!!!!!!!
I was confused first of all 'cause I kept getting 'x bars' of around 1 - 3, and when I was looking at it I thought, NO, the centre of mass is gonna be like, there *pointing near the top right of the shape*.
Then I remembered about the masses. *facepalm*
Anwyay, I **** myself straight away when they gave the papers out. LIKE A MILLION PAGE BOOKLETS, WTF.
I liked all the questions except for 4, which I didn't recognise as a typical question at first.
Then for 7 my coefficient of restitution was taking ridiculous values. I got a negative value, and then I just decided to go with 0.04. Probably wrong!
For 4 I got 76N and 107n or something.