A force pointing in the x direction is given by F=ax^(3/2), where a=0.55N/m^(3/2). Find the work done by this force as it acts on an object moving from 0 m to 16m.
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I will take a stab by saying you need to integrate your force function with respect to x as W = F.x and the force is dependent on the distance.
gives you (2/5)ax^(5/2) = (2/5)*0.55*16^(5/2) = 225.28 joules
gives you (2/5)ax^(5/2) = (2/5)*0.55*16^(5/2) = 225.28 joules