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M1 wjec 19th june 2018

Found the exam alright q6c and q8 were abit difficult tho

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Original post by Svesh
Found the exam alright q6c and q8 were abit difficult tho


Ah, you beat me to the thread g haha.

Yeah, it was the standard M1. Couple hard questions, mostly easy questions. It's usually 55/56 for an A

deffo didn't get Q6c right lol. Did you get Sina = 0.25?
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Yh 0.25 do u remember the answer to the particles bouncing of the wall then they collide after 5 seconds what time do a and b collide
Original post by Kyber Ninja
Ah, you beat me to the thread g haha.

Yeah, it was the standard M1. Couple hard questions, mostly easy questions. It's usually 55/56 for an A

deffo didn't get Q6c right lol. Did you get Sina = 0.25?


Yeah i got 1/4 for sinA.

The i got the angle of found the coefficient of Friction, which i got 0.77 i think
Original post by Svesh
Yh 0.25 do u remember the answer to the particles bouncing of the wall then they collide after 5 seconds what time do a and b collide


I had 7 seconds - don't know if I am right though
Original post by bobbughghlgkj
Yeah i got 1/4 for sinA.

The i got the angle of found the coefficient of Friction, which i got 0.77 i think


Same - I was relieved when my Sina was a normal number lol
Original post by Kyber Ninja
Same - I was relieved when my Sina was a normal number lol


Yeah me too. I think that q qas 9 marks.

How did you fiond the rest of the paer, there iwas 1 or 2 q's that were weird but overall it was alright. I say it will be 56/7 for an A
Original post by bobbughghlgkj
Yeah me too. I think that q qas 9 marks.

How did you fiond the rest of the paer, there iwas 1 or 2 q's that were weird but overall it was alright. I say it will be 56/7 for an A


Yeah I agree - raindrops ****ing hell

Did you get acceleration for the 7 marker as a=2.45?

did you also get recurring values for the moments question?
(edited 5 years ago)
Yeh for a i got 2.45 and tension was 37. something

I think for the moments i got 35.45454545 or something and then a larger number for the other one, i think maybe 452.somehting

Original post by Kyber Ninja
Yeah I agree - raindrops ****ing hell

Did you get acceleration for the 7 marker as a=2.45?

did you also get recurring values for the moments question?
Original post by Kyber Ninja
I had 7 seconds - don't know if I am right though


I got 5.92s, 2.5 + 2.1 = 4.6, 4.6/5. Dunno if that is correct though, I just assumed I could use relative velocity.
For the raindrops, did anyone get 3.9m?
Original post by Welshstig
For the raindrops, did anyone get 3.9m?


That was the hardest question on the paper lol -

Original post by bobbughghlgkj
Yeh for a i got 2.45 and tension was 37. something

I think for the moments i got 35.45454545 or something and then a larger number for the other one, i think maybe 452.somehting


I think I had 55.454545454545 and 452 something - maybe one of us is just misplacing the numbers
Original post by Kyber Ninja
That was the hardest question on the paper lol -



I think I had 55.454545454545 and 452 something - maybe one of us is just misplacing the numbers


I just said constant time difference of 1/7 s and subtracted the distance travelled by A when time was 19/7 from when time was 20/7 (20/7 seconds being the total time of travel).

Also, I believe it was 55.4545 and (60g -55.45454) 532.54545454.
(edited 5 years ago)
Yeah I got that.

R1+R2 = 60g
Then I done moments about R1 (P)

What did you get for the collisions question

I think I gothink 0.5 for e
Original post by Welshstig
I just said constant time difference of 1/7 s and subtracted the distance travelled by A when time was 19/7 from when time was 20/7 (20/7 seconds being the total time of travel).

Also, I believe it was 55.4545 and (60g -55.45454) 532.54545454.


Right - That's what I had!

Did you get 10.8N for resultant force and 24. something degrees for the angle?
Original post by Kyber Ninja
Right - That's what I had!

Did you get 10.8N for resultant force and 24. something degrees for the angle?


For the angle i got something like 115 degrees (second quadrant), I just added 180 to the minus value I got. And I also got 10.8N
Original post by Welshstig
For the angle i got something 115 degrees (second quadrant), I just added 180 to the minus value I got.


But you get 10.8 as the resultant force right?
Original post by Kyber Ninja
But you get 10.8 as the resultant force right?


Yep
anyone get 4 and 4.75 for Q9?
Original post by Welshstig
Yep


Meh - I'd rather lose 2 marks than lose 6 for not getting the resolving right lol

did you get x =4 and y = 4.75 for lamina?
(edited 5 years ago)

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