AQA MM1B - Mechanics 1 -Tuesday 21st June 2016

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

Reply 261

girl :D

12

Original post by jtebbbs

Worked answers to ramp and football questions:

Attachment not found

ur writing is goergous :biggrin:

Reply 262

AQA-Disgrace

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 :frown:

Did the same as you but I think we will only lose 2 marks max at least

Reply 263

Cal 1

2

Original post by gcsekid

Ignore the pencil line
How are people getting 43 newtons for T

The force was acting down, so R= mg + Tsin60

Reply 264

Cal 1

2

How many marks would you get /3 if you equated the mass in the momentum question to be 335kg? Just 1? 2?

Reply 265

TheLifelessRobot

7

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.

Reply 266

1TrueMeaning

15

Original post by jtebbbs

Worked answers to ramp and football questions:

Attachment not found

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

Reply 267

palacefloor

2

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 :/

Reply 268

OturuDansay

6

Grade boundary predictions anyone? I'm thinking 58/57 for an A?

Reply 269

A Slice of Pi

13

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.