thehappybunny SG the stupid qn about the variable resistor and the 2 voltmeters, i anyhow put. zzz other than that i find it easy lah. 1 week ++ and Os are OVER
RaaRaa SG Don't think about O's endding and flunk the rest of the papers. At least that what happened to me last time. In the end did badly for a few papers.
lpx88 SG Voltmeter 1 is dec then i go change to incr..zzz... Voltmeter 2 inc Ammeter dec I was stuck at that for at least 10 mins
eagle SG from what I understand from the question, seems like if u use F=ma, it is wrong because the final frictional force calculated will include the gravitational force The car went up a slope right?
lpx88 SG K.E gained at 1st minus G.P.E gained at the end Then use that value, divide over the distance 40m to get the frictional force per metre? Rationale is by right K.E should be totally converted to G.P.E?
eagle SG correct that was what I explained to my sis That is due to conservation of energy Initial KE = Final GPE + Work Done against friction
absol SG tt friction qns..use 560kJ - gpe of car to get frictional force right? den divide by distance to get avg frictional force... i minus about 20 marks for p2 le...zzz my a1....
eagle SG minus already is get work done by frictional force divide by distance get av frictional force ur method is correct, but phrasing is wrong
AndrewPKYap SG When the car moves, it goes from point A to point B.... discuss the Bio paper tomorrow more beneficial....
