Answer this for me (1 Viewer)

[jamesfirst]

a) Why are fast sprinters better at long jump?

b) If a sprinter jumped at an angle of 15 degrees and his range was 7m, what is the initial velocity he has jumped.


I can answer a) but I can't answer B.

The textbook has some weird answer that I never even learned... can anyone answer b) for me, ie using the formulas on the formula sheets

 

[FCB]

Is there even enough data for B? Dont you need to know 4 knowns values?. I cant find time nor verticle/horizonaltal velocity from the available data.

Its proably just me.

 

[ohexploitable]

 

[ohexploitable]

Is there even enough data for B? Dont you need to know 4 knowns values?. I cant find time nor verticle/horizonaltal velocity from the available data.

Its proably just me.

It is a pretty hard question, I haven't seen anything similar in the Jacaranda textbook.

 

[hscishard]

In the hsc, can you use 3unit maths projectile motion? I cbf remembering all these formulas

 

[Omnipotence]

In the hsc, can you use 3unit maths projectile motion? I cbf remembering all these formulas

Highly doubt it. Since syllabus states solving projectile motion with specific eq/ns.

 

[Lumix]

My teacher says we can but I dont see the point. There is also not a lot of formulae to remember, just the standard motion ones like v=u+at, s=ut+0.5at^2 etc and remember a=0 for horizontal and stuff like tht.

 

[jamesfirst]

Not sure

It's on sorted by topic section from 2001- 2003


Anyone know where I can get past papers from 2001 and before ?? I don't want the BOS ones. I have to print it :S:S:S:S


And where can I get those CSSA and Independent Past papers???

 

[jamesfirst]

What formulas do you need to remember... Most of them are given to you in the exam.

BTW I got this from Success One Physics and I saw the solution and they used some WEIRD formula which I WON'T be learning


pretty weird Q... highly doubt it'll be in my half yearlies since most of our school teachers won't think of anything this complicated


btw nice thinking ohexploitable . I get it now

Good to know these difficult questions so that I don't get owned in the exam

 

[FCB]

Well done Exploitable.

What formulas do you need to remember... Most of them are given to you in the exam.

BTW I got this from Success One Physics and I saw the solution and they used some WEIRD formula which I WON'T be learning


pretty weird Q... highly doubt it'll be in my half yearlies since most of our school teacher won't think of anything this complicated


btw nice thinking ohexploitable . I get it now

Good to know these difficult questions so that I don't get owned in the exam

I will probably have to get my hands on a copy of the SuccessOne Physics. What year was this question from.

 

[Aquawhite]

I would find it hard to believe finding the second question in an actual HSC paper, although it certainly is an interesting question and ohexploitable provided a great and simple solution to it.

Bit difficult/long for HSC level.

 

[FCB]

So its not actually in the HSC?...

 

[jamesfirst]

This was actually in the HSC. It was one of the question, from "sorted by topic", around 2001-2003 papers. Don't know what because that section of the book is compilation of Space topic questions...

So yeah I presume it'll actually be in the HSC. You don't want to neglect these questions because you think it's long and hit a brick wall in the exam once it pops up