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  1. H

    3u question( motion , integration)

    20) A particle moves in a straight line . At time t seconds its displacement is x metres from a fixed point O on the line, its acceleration is a ms^-2, and its velocity is v ms^-1 where v is given by v=32/x - x/2. a) find an expression for a in terms of x. b) Show that t = integrate(2x /...
  2. H

    Question about integration + motion

    20) A particle moves in a straight line . At time t seconds its displacement is x metres from a fixed point O on the line, its acceleration is a ms^-2, and its velocity is v ms^-1 where v is given by v=32/x - x/2. a) find an expression for a in terms of x. b) Show that t = integrate(2x /...
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