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    So this was a re-take for those who are on the 2008- course for Edexcel physics, how did you find it?
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    It was okay. Somehow I got 144J for the show that it = 130J but I have no idea how?
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    How did you do the show that 130J Q?
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    Was that the one with the graph and compression? If so I used the graph for 6cm compression and I think I did Ke is equal to Gpe but I can't remember my answer
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    (Original post by KINGYusuf)
    How did you do the show that 130J Q?
    You just have to find the difference between, area under graph for compression = 9 cm and compression = 3 cm which is the work done.
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    all I keep thinking about are my mistakes, what did you guys get for the max velocity on the last question?
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    For the pogo stick I got 127j which is close enough to 130 iguess, its the wd=fxd
    D=0.06 and f= from the graph
    For part b I did that 130 =ke and worked out v which was something like 2.6/2.8 dunno how right I am tho, any progress on this unofficial Ms?
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    (Original post by luqmoney)
    all I keep thinking about are my mistakes, what did you guys get for the max velocity on the last question?
    I got 7m/s, dis you get a ridiculously small radius?, like 2.46x10-4m or something
 
 
 
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