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  1. asadalam

    How did the physics 22 paper go?

    I dont think so.You used wrong physics.Maybe 1 mark for a correct idea of the formula to be used.
  2. asadalam

    How did the physics 22 paper go?

    Yeah paper practice helps a lot Yup it reached highest point and zero speed at 1.25 s
  3. asadalam

    How did the physics 22 paper go?

    Really?I finished the paper in 40 min.When i had finished i looked up and saw time as 9.40.Then i just started to recheck everything till the time was over.If you do it fast paced from the start you end up with a lot of time on your hands to correct any mistakes you might have done.
  4. asadalam

    How did the physics 22 paper go?

    That would obviously slow the ball down and besides it said AIR RESISTANCE is negligible.The friction due to sand would be immense and create a weird non-parabolic graph.
  5. asadalam

    How did the physics 22 paper go?

    Not necessarily.There are loads of scenarios.This could also be the case that we threw it over on the edge of a cliff and it went up and kept going down,all vertically,understand?If it rebounded,it would show displacement would not be negative as the stone would not go below its initial point
  6. asadalam

    How did the physics 22 paper go?

    No its not rebounding its going downwards.If it went to displacement would've changed.Think of it like we threw it over a hole.To a point it rose above it,then it kept falling and went into the hole,even below the point where it first started.Thats where DISPLACEMENT got negative.
  7. asadalam

    How did the physics 22 paper go?

    Speed at 1.25 was 0.All force due to gravity.Total time travelled down was (3.0-1.25) i.e 1.75 then we just input using v=u + at where u is 0,a is 9.81 and t is 1.75 This gives 17.16 i.e 17.2
  8. asadalam

    How did the physics 22 paper go?

    For Q2 Q2 17.2 speed at 3.0s distance was 22.7,displacement 7.33 vertically down Graph of velocity was a straight line with negative gradient with x intercept at 1.25 and y intercept at 12.2 and on the other side at the end at 3 s it was -17.2
  9. asadalam

    How did the physics 22 paper go?

    I doubt it,2014 WAS easy and i dont think GT will be that high.It only goes above 40 for like seriously easy bacho walay papers.So im expecting around 36-39 esp since most people got a lot confused by Q2
  10. asadalam

    Physics: Post your doubts here!

    Me too.can we all discuss
  11. asadalam

    Physics: Post your doubts here!

    Good luck for Physics P2 people!
  12. asadalam

    Physics: Post your doubts here!

    http://physics-ref.blogspot.com/2014/06/9702-june-2013-paper-22-worked.html See Q4
  13. asadalam

    Physics: Post your doubts here!

    No they dont,as they are travelling in opposite directions hence their displacements will be different.Think of it like forming a stationary wave.At one time there will be large displacement where there is total constructive and at one there will be zero as there is total destructive.Getting me...
  14. asadalam

    Physics: Post your doubts here!

    Yes they can ask to draw apparatus,give conclusions as to what experiment shows and to explain why smoke particles are used and bigger smoke particles show little movement.
  15. asadalam

    Physics: Post your doubts here!

    They are the algebraic sum.Just add the 2 points coinciding that will give the largest value.Draw a vertical line through both waves and identify one point where when adding together both waves displacement will give the largest displacement
  16. asadalam

    Physics: Post your doubts here!

    I think we can find the relative change in phase difference with time using 1/8 x 360 = 45 so 45 degree change in every 1/8 of the period Then you can draw the graph and find out the sums by adding.3/8 should be 90+135= 225 Again im not really sure about that question,whats the year?
  17. asadalam

    Remodelling the XtremePaper's O Level Forum

    Bump V2.0
  18. asadalam

    Physics: Post your doubts here!

    I did this by finding the time at t/2 and then applying relative equations to find height(GPE) and velocity(KE)Then you can find the ratios.
  19. asadalam

    Physics: Post your doubts here!

    Isnt it a bit of both?Total Dest will be on 180
  20. asadalam

    How was Economics 22?

    Yeah,we'll confirm it soon enough,its only for 2 marks anyway
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