AQA A2 Mathematics MM2B Mechanics 2 - Monday 22nd June 2015 [Exam Discussion Thread]

Reply 440

Number Nine

12

Got mew as 1/3 and theta as 1.15

Please someone tell me it's correct xoxo

Reply 441

bw_wwfc

1

Original post by Number Nine

Got mew as 1/3 and theta as 1.15

Please someone tell me it's correct xoxo

I got 1.15 but no one at my school could do the last question

Reply 442

Peddlewoods

1

I want to curl up and die. That exam ruined me and my chances of going to my firm uni. ****.

Reply 443

olatee

2

Gosh I got the expression for the jumper right but didn't realized I had to devide by 7 I kept dividing by 5 for some reason and just left the expression how many marks do you think I would have lost?

Reply 444

Jennifer Lin

i can not do the last question at all. i hope what i did for the rest of the question will be right

Reply 445

aly369

1

Overal a tricky paper. I got mew to be 0.866

Reply 446

bw_wwfc

1

Original post by olatee

Gosh I got the expression for the jumper right but didn't realized I had to devide by 7 I kept dividing by 5 for some reason and just left the expression how many marks do you think I would have lost?

that will get you 0 ums overall

Reply 447

sum1random

1

I got 1.15 for angle as well hope its right was scared to see that was 9 marks

Last q was so messed up, only managed to cancel 'mg' in last minute. did anyone get root(3)a or something similar for distance of the second reaction from P?

Reply 448

KP7991

What did people get for the minimum and maximum resultant forces?

Reply 449

sum1random

1

did any1 get 27.06e^[-10/3t] + 2.94 for velocity for jumper?

Reply 450

KP7991

Original post by sum1random

did any1 get 27.06e^[-10/3t] + 2.94 for velocity for jumper?

Yep

Reply 451

sum1random

1

Original post by KP7991

What did people get for the minimum and maximum resultant forces?

i dont remember exact values but it was something in 2000s for me like 212* and 210* ?? where * is a no

Reply 452

bw_wwfc

1

Original post by sum1random

did any1 get 27.06e^[-10/3t] + 2.94 for velocity for jumper?

yes but i rounded 27.06 to 27.1 as answers are to 3 significant figures

Reply 453

Red Fox

11

I thought find theta was way too short for 9 marks so got a bit worried.

Original post by KP7991

What did people get for the minimum and maximum resultant forces?

I got 2120 and 2140 to 3sf but no idea if it's right.

Reply 454

bw_wwfc

1

Original post by Red Fox

I thought find theta was way too short for 9 marks so got a bit worried.

I got 2120 and 2140 to 3sf but no idea if it's right.

same

Reply 455

mamacita

2

Original post by sum1random

I got 1.15 for angle as well hope its right was scared to see that was 9 marks

Last q was so messed up, only managed to cancel 'mg' in last minute. did anyone get root(3)a or something similar for distance of the second reaction from P?