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A particle moves in a straight line with an acceleration a ms^-2 at time 't' seconds where a = - 1/t² when t=1 the particle has a velocity of 3ms^-1 then find the velocity when t=4

  • physics -

    dv/dt = -1/t^2

    v = (1/t) + c

    3 = 1 + c
    c = 2

    v = (1/t) + 2
    if t = 4
    v = 2.25

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