URGNET - anyone got Mark scheme for June 04 M1 OCR Watch

MCYan
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#1
Report Thread starter 9 years ago
#1
the code would be 2637

Please reply to as soon as possible!

much appreciated
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COMMUNIST
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#2
Report 9 years ago
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I don't have the official mark scheme. I do have the answers:

1) R= 294N

2)
i) 2.0 ms^{-1}

ii) 4s

iii)1.67ms^{-1}

3)
i) v=0.12t - 0.0003t^2

ii) 3200m

4)
i) \alpha=73.7degrees

ii)175N

iii) 3.01m

5)
i) R=63N
angle to horizontal = 75.7degrees


ii) X=18.9N

iii) In this situation R is smaller. Since F = \mu R, it follows that F is smaller. Hence, X is smaller.

6)
i) a=2.8ms^{-2}; T=6.3N

ii) 1.152m

iii)0.457s

7)
i) 6.3ms^{-1}

ii) \mu= 0.025

iii) 2.24Ns
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MCYan
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#3
Report Thread starter 9 years ago
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thank you
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