Applied Maths Q5(b) 2000 Exam Paper

Prodigious · 2013-02-18 18:09:05

Hi, The marking scheme is here. http://www.thealy.com/exam_arch/applied%20maths/lc_app_maths_hl_00_ms.pdf I got as far as Tan ß . I don't understand why he takes alpha from beta to get theta?

18-02-2013 07:09PM

#1

Prodigious

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Hi,

The marking scheme is here. http://www.thealy.com/exam_arch/applied%20maths/lc_app_maths_hl_00_ms.pdf

I got as far as Tan ß . I don't understand why he takes alpha from beta to get theta?

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#2 18-02-2013 07:29PM

decisions

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Because the difference between the tan of the angle before collision and the tan of the angle after collision is equal to the angle of deflection, in this case θ.

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#3 18-02-2013 07:32PM

Prodigious

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Alright, thanks a mill for the reply

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#4 18-02-2013 07:35PM

Prodigious

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Although I would have thought it would be the two angles added?

(Drawn on http://awwapp.com/draw.html)

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#5 18-02-2013 07:51PM

decisions

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No, your not getting what I'm saying. I hope the pic makes it clearer.

The collision occurs where the green line changes direction.

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#6 18-02-2013 07:53PM

Prodigious

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Ah right, that makes sense ! Thanks again

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#7 18-02-2013 07:54PM

decisions

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No problem.

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