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Mechanics Paper 42 Solutions

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[Spy]:
guys here are the solutions for the whole paper :) and im very sure of them :)

1) a=0.845

2) i) 0.09
    ii) 1.08
    iii) 0.72

3) i) 3.05
    ii) 1.62

4) 500N 38.9 to the x-direction

5) i) 3
    ii) 0.32

6) i) a=6 & v=3.95
    ii) i did a silly mistake here so i dont know the right answer. someone post it

7) i) A=4 & B=3375
    ii) -3375/t + k (though i did a silly mistake here i forgot to put K, GODDD!!! :@) so i dont know the value of K
    ii) DO YOU GUYS THINK I'D GET AN ECF? :( answer was something around 5.4

:)

XaM!!:
ur ans r same as mine... BUH I ****ed one part.. my acc came 6 but V wasnt coming 3.95. wat do u thnk how many marks will deduct??? it was of 7 marks... i got acc 6..

n my B was coming in negative... -377smthn...

neno:
how many marks was 5 ii) worth....how r u sure these r the ryt answers....i got all the same answers other than this part sumhow i got 0.13 as the height
dont u do 1.35-workdone against resistance=ke-pe
then PE =0.39 i think i dont remember
 

panther:
For question 4 it was 36.9 to the x-direction

neno:

--- Quote from: panther on May 20, 2010, 11:11:23 am ---For question 4 it was 36.9 to the x-direction


--- End quote ---
yea i think i got tht 2 cant remember the figures tht well

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