Edexcel M1 - 23 January 2013 - Official A2 Maths

The paper was very very difficult . The last question and vector question last part was very hard . I am very sad . I will do in June .

Posted from TSR Mobile

Reply 141

Chloe_P

1

Original post by the A* guy

What did everyone get for the very last question, I got 1.5h ??

yh I got that too!

Reply 142

DanD123

I thought the paper was relatively straight forwards, only mistake I made is I forgot to add the first h the ball travelled (Duhhh) So I got 0.5h . Should still get most of the marks for that question though !

Reply 143

username937760

16

Original post by DanD123

I thought the paper was relatively straight forwards, only mistake I made is I forgot to add the first h the ball travelled (Duhhh) So I got 0.5h . Should still get most of the marks for that question though !

You should only lose one mark for not adding h on at the end.

Reply 144

JenniS

2

Original post by JenniS

thanks!

why did someone neg me for saying thanks? paha sorry for being polite

Reply 145

Asgard

Original post by ryanb97

for q

ryan

He is correct, but you can do it for any one of them because the impulse exerted on both particles is the same.

Just depends on the valves you have.

Reply 146

Eternity Flame

11

I did a stupid mistake in the last question last part.. I square rooted the final velocity and as a result i got 0.5h^2 + h as the final answer ... WOuld that be correct ???

And can anyone tell me why the new acceleration is not -9.8 ?? I thought i did a mistake (because i didnt get -9.8) ..anyway now i am a little happy

Reply 147

Chloe_P

1

Original post by Eternity Flame

I did a stupid mistake in the last question last part.. I square rooted the final velocity and as a result i got 0.5h^2 + h as the final answer ... WOuld that be correct ???

And can anyone tell me why the new acceleration is not -9.8 ?? I thought i did a mistake (because i didnt get -9.8) ..anyway now i am a little happy

When you square root 7.84h you'll get 2.8 square root h not 2.8 h. Therefore when you square 2.8 square root h you'll end back at 7.84h whereas it you square 2.8 h you'll get 7.84h^2 which is what you did.
Hope it makes sense :redface:

.

Can someone be nice enough to show me how to use the latex. :flutter:

Reply 148

Eternity Flame

11

Original post by Chloe_P

When you square root 7.84h you'll get 2.8 square root h not 2.8 h. Therefore when you square 2.8 square root h you'll end back at 7.84h whereas it you square 2.8 h you'll get 7.84h^2 which is what you did.
Hope it makes sense :redface: