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9709 MATHEMATICS P42 2014 GT
hahahaahah yayyyyyy. I am loosing more than you though. Do you remember the answer to Q2 (i) Did you get T=5??? -
9709 MATHEMATICS P42 2014 GT
yes. the total length of the string was 5.28 and the table's length was 4 so (5.28-4)/2 = 0.64. The height of each particle is 1-0.64=0.36 m And for the last part. B has touched the ground. Tension in that string becomes 0 so 0-(0.25+2.5a +2 ) = 0.5a so a = -6 -
Mechanics 1 P42 2014; Discussion!
Could you tell us the answers now? -
9709 MATHEMATICS P42 2014 GT
yes. Part I and Part I each worht 3 marks. The last 2 parts were worth 2 marks each -
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9709 MATHEMATICS P42 2014 GT
Q7 (I) TA = 0.25a +2.5, TB = 7.5-0.75a (ii) a= 2 show (iii) 1.2 ms^-1 (iv) -6 ms^-2 or simply the magnitude of the deceleration was 6 -
9709 MATHEMATICS P42 2014 GT
yes of course it was. Now tell me. did you get Tension = 17.59N or some other value? -
9709 MATHEMATICS P42 2014 GT
oh okay. And for Q6. The deceleration was 67.5 and R was 15.5N . The tension in the string was 17.59N -
9709 MATHEMATICS P42 2014 GT
same thing right ?? the time at which the particles collide. particle P with acceleration 0.5 starting from A and particle Q with constant speed 0.75 passing through B -
9709 MATHEMATICS P42 2014 GT
did you get T=5 for question 2? Part I -
9709 MATHEMATICS P42 2014 GT
what was the change in ke of the system. I got 10.5 v^2 -
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9709 MATHEMATICS P42 2014 GT
oh and for question 6. the deceleration was 67.5 and the value of R waa 15.5 N the value of tension in the next part was 17.59 N -
9709 MATHEMATICS P42 2014 GT
can someone please upload a solution for Q5. for part (I) I got 10.5v^2 part (II) 135 x J or something part (III) I calculated the tension and the work done by the tension and thn used the formula work done by tension = ke gain - PE loss + work done against resistance, to calcuclate the work... -
Mechanics 1 P42 2014; Discussion!
Were you born on another planet? LOL! The GT in nov 2013 was less than 40 even though the paper was easy. GT will probably be below 36 -
9709 MATHEMATICS P42 2014 GT
No comment on the paper. It.... was a disaster. -
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