Recent content by barker25

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    question 16 ?

    what i remeber was that the object is in a staionary position 10000 km away from the centre of a planet, to move the object from the centre of the planet to a stationary position 20000km from the centre of the planet requires 1 Mj. how much more work would be required to move the object from the...
  2. B

    Question 18. work done?

    does anyone know how to answer the question? i know you have to use W = Fs but how do you work out the new force required for the larger displacement? can anyone help? or is this just a bullshiz question that no one can do (no one seemed to able to do it at killara...)
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    hsc relativity question

    yeah we got the same result... i think you are right
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