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# AQA MM1B - Mechanics 1 -Tuesday 21st June 2016

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1. (Original post by Cal 1)
I did this, but made t the subject and subbed it in, forming an equation with v in it. I solved this and I THINK I got somewhere around 14 but can't really remember! My equation looked disgusting😂
Yeah, I did that as well, because it looked easier to do otherwise you would have to square the value for v then rearrange
2. (Original post by jtebbbs)
Worked answers to ramp and football questions:
Attachment 554193554195Attachment 554193
ur writing is goergous
3. (Original post by postexamtalk)
i found the distance of each and found the difference between distances rather than finding difference between the displacements and then finding distance
Did the same as you but I think we will only lose 2 marks max at least
4. (Original post by gcsekid)
Attachment 554175
Ignore the pencil line
How are people getting 43 newtons for T
The force was acting down, so R= mg + Tsin60
5. How many marks would you get /3 if you equated the mass in the momentum question to be 335kg? Just 1? 2?
6. (Original post by A Slice of Pi)
Can anyone remember this 10 mark question? I'll have a go at it
Ano123 posted the numbers. Here it is:
A has an initial velocity 8i+4j and acceleration -0.2i+0.1j, started at origin.
B has an initial velocity 6i+9j and acceleration 0.2i-0.1j and started at position vector 40i+50j.
Find the distance between A and B when their velocities are parallel.
7. (Original post by jtebbbs)
Worked answers to ramp and football questions:
Attachment 554193554195Attachment 554193
Hi. For the football question i left out cos50 from ucos50. Otherwise i have everything as you do. I left it out by mistake. How many marks would i drop? Thanks
8. (Original post by Cal 1)
How many marks would you get /3 if you equated the mass in the momentum question to be 335kg? Just 1? 2?
negative 7 marks sorry :/
9. Grade boundary predictions anyone? I'm thinking 58/57 for an A?
10. (Original post by TheLifelessRobot)
Ano123 posted the numbers. Here it is:
A has an initial velocity 8i+4j and acceleration -0.2i+0.1j, started at origin.
B has an initial velocity 6i+9j and acceleration 0.2i-0.1j and started at position vector 40i+50j.
Find the distance between A and B when their velocities are parallel.
I get 106 units for distance (105. something)
11. (Original post by Cal 1)
How many marks would you get /3 if you equated the mass in the momentum question to be 335kg? Just 1? 2?
2 probably. 1 M1 and 1 A1.
Or 1 if there really nice
12. I got 109 for Q8 lol, how many marks u think i'll drop.
13. (Original post by OturuDansay)
I got 109 for Q8 lol, how many marks u think i'll drop.
If your thinking was alright 2 Max3
14. (Original post by Agent R5)
t=20
Fgs how did I read '12 seconds' so annoyed
15. (Original post by Cal 1)
The force was acting down, so R= mg + Tsin60
Oh sh*t
16. (Original post by OturuDansay)
Grade boundary predictions anyone? I'm thinking 58/57 for an A?
between june 14 and 15 i think
17. 100 UMS boundary? 68?

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18. (Original post by PiTheta97)
100 UMS boundary? 68?

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most likely yeah. not lower than 67 not higher than 70, since it was kinda harder than last year's paper imo which was 70 for 100 ums :/
19. When your thinking too hard

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