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Edexcel AS/A2 Mathematics M1 - 8th June 2016 - Official Thread

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Reply 200

kiasne

I'm going to fail so hard. Please help me, I don't understand any of it.. :frown:

Reply 201

metrize

How do you know if you need a numerical answer or in terms of letter, it doesnt seem apparent and its so annoying

Reply 202

ryandaniels2015

Hi, Very simple question, when do you know you have to split something into its components, e.g. the weight of a particle?

Thanks

Reply 203

mani119

Original post by metrize

How do you know if you need a numerical answer or in terms of letter, it doesnt seem apparent and its so annoying

Do you mean surd and decimals?

Reply 204

metrize

Original post by mani119

Do you mean surd and decimals?

Like T=3/5m for example

Reply 205

flowerspace

Original post by ryandaniels2015

Hi, Very simple question, when do you know you have to split something into its components, e.g. the weight of a particle?

Thanks

When it's acting at an angle so if the object was on a slope you'd split it

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Reply 206

flowerspace

Original post by metrize

How do you know if you need a numerical answer or in terms of letter, it doesnt seem apparent and its so annoying

Yeah I always get stuck on that as well I spend ages trying to work out a numerical answer and then the mark scheme has it in terms of a letter

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Reply 207

ryandaniels2015

Original post by flowerspace

When it's acting at an angle so if the object was on a slope you'd split it

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Thanks but what about this case, why would you split for the ring?

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Reply 208

ryandaniels2015

Original post by ryandaniels2015

Thanks but what about this case, why would you split for the ring?

Actually mark scheme says you don't, why?

Thanks

Reply 209

flowerspace

Original post by ryandaniels2015

Thanks but what about this case, why would you split for the ring?

I have no idea, I would split it for the string.
Maybe they are resolving it relative to the string not the ring that might make sense.
Do you have the mark scheme?

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Reply 210

flowerspace

Original post by ryandaniels2015

Actually mark scheme says you don't, why?

Thanks

Ok yeah that makes sense
It's because it's not on a slope the rod is not at an angle

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Reply 211

ryandaniels2015

Thx for the reply, why would you resolve the string?

Original post by flowerspace

Ok yeah that makes sense
It's because it's not on a slope the rod is not at an angle

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Reply 212

kkboyk

Original post by kiasne

I'm going to fail so hard. Please help me, I don't understand any of it.. :frown:

I feel you. I'm retaking M1 and just started t revising for it today. Vectors and graphs are the ony topic I can't comprehend and I really need 90%+ on it :frown:

You should try focusing on topics you do not understand first. Try watching these tutorials first, and then jump straight to question by topic booklet on Physics and Maths Tutor.

Original post by metrize

How do you know if you need a numerical answer or in terms of letter, it doesnt seem apparent and its so annoying

I usually don't give numerical answers unless the question is on kinematics or it asks for magnitude. Use letters if one of the info they give you (such as speed before collision, weight of a particle) is in letters.

(edited 7 years ago)

Reply 213

flowerspace

Original post by ryandaniels2015

Thx for the reply, why would you resolve the string?

Does this diagram make sense?

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Reply 214

flowerspace

Original post by flowerspace

Does this diagram make sense?

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I should have added the friction too, here

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Reply 215

ryandaniels2015

Original post by flowerspace

I should have added the friction too, here

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Yes thanks very much, but it's not splitting that bothers me, it's when to do it?

Reply 216

flowerspace

Original post by ryandaniels2015

Yes thanks very much, but it's not splitting that bothers me, it's when to do it?

Ok, do you have the answers for that question and then I'll see if I can do it and write out why I'm doing each step?

I've attached some pictures to try and explain it (i think)
Sorry I'm pretty bad at explaining things haha

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Reply 217

flowerspace

Original post by kkboyk

I feel you. I'm retaking M1 and just started t revising for it today. Vectors and graphs are the ony topic I can't comprehend and I really need 90%+ on it :frown:

You should try focusing on topics you do not understand first. Try watching these tutorials first, and then jump straight to question by topic booklet on Physics and Maths Tutor.

I usually don't give numerical answers unless the question is on kinematics or it asks for magnitude. Use letters if one of the info they give you (such as speed before collision, weight of a particle) is in letters.

Yeah I'm resitting too :frown:

the vectors always get me but I feel like I'm getting them a bit more too. When ever the question is find the time when the ship will be due north of the other ship I could never get them

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