OCR Physics A G481 Mechanics [Thursday 17th May 2012]

I got all the way to finding the volume of of water, then to find the radius i used volume of a sphere by accident

It was defo harder than Jan paper.

what did people get for the hieght of the ball?
how is it 7.3m, wasnt the initital velocity something like 31ms^-1 so how could the hieght be so low.
i got something like 703m

It was defo harder than Jan paper.

what did people get for the hieght of the ball?
how is it 7.3m, wasnt the initital velocity something like 31ms^-1 so how could the hieght be so low.
i got something like 703m

No. The initial speed was 24sin30 (12). Use suvat.

$s: ?[br]u: 12[br]v: 0[br]a: -9.8[br]t: X$

$v^2 = u^2 + 2as$

$\frac{0^2-12^2}{-19.6} = 7.35$

Really?! I thought the opposite

yayayayay! I got 7.3 m for the height of the ball as well! Gaaah, so happy- thought I had completely bummed that question, well that's 2 0r 3 out of 60... woooh

Yeah I messed it up too, but h was 3m, since water went at a speed of 3ms^-1

I got 11.8.

Do you think they'll accept a range and my answer will be in the range?

Well I'm not A level student I'm in yr 11 and will be doing Physics next year, How is Physics as an a level?
Is it hard?
Do you enjoy it?
What do I need to do to get As or A*s at a level Physics???
Please give you experiences.
Does a good sixth form matter?

Thanks and good luck with your exams