PLS HELP WITH PART C

[cedar nest]

Vectors year 1 pure question from past paper
I need help on part c <@&791435371564892232>

@raven shadow

[raven shadow]

oh hell nah

[cedar nest]

@drowsy sparrow you’re bare smart bro, could you help possibly?

Sorry bout the ping

[drowsy sparrow]

I cba for vectors I'm always going off of gcse knowledge bc my teacher was shit 😭 give me a sec to actually get the answers and I'll guide you through them

[cedar nest]

I can send ms here

I can send a ss, one sec

[drowsy sparrow]

Alr

[cedar nest]

@drowsy sparrow

[drowsy sparrow]

Okay so you can see that the coefficient of a is 0, because ON is parallel to OB / is (a scalar constant) × OB.
Using that, they found λ to be 4/3. Plugging that into the equation, the vector of ON would be 2/3 b or 2/3 × OB. That means that the distance from O to N would be 2/3 times the distance from O to B
Putting this on a line, that would mean the distance from N to B would be 1/3 times the distance from O to B, and so the ratio between the distances ON and OB would be 2:1

If you need me to go over any of that then just ask

[acoustic plank]

dk if that makes a lot of sense

but u need to find 2 routes of ON

and make the coefficients equal to each other to find lambda

theres a bunch of different ways of doing these types of vector questions

2 marks for this is ridiculous tho. what paper is this from

[magic ridge]

anyone know how the vector line equation works

swear it can be used for these type of qs

[acoustic plank]

isnt that for 3d vectors?

[magic ridge]

idk

ill be doing 3d vectors soon

not looking forward to it ngl

[cedar nest]

Why are you equaling 2-3/2 lambda to 0?

[cedar nest]

Ong

Pmt vectors

[acoustic plank]

they’re the coefficients of a

[cyan pulsar]

I thought vectors were gone at a level 😨

My days ruined

[magic ridge]

there's 3d ones at a level