You can also see this directly from Equation (???), by choosing the x axis to point in the direction of the force (so Fy = Fz = 0), and the displacement to point along any of th...You can also see this directly from Equation (???), by choosing the x axis to point in the direction of the force (so Fy = Fz = 0), and the displacement to point along any of the other two axes (so Δx = 0): the result is W = 0. So—for this very simple system—we could rephrase the result (???) by saying that the work done by the net external force acting on the system (the particle in this case) is equal to the change in its total energy.
You can also see this directly from Equation (???), by choosing the x axis to point in the direction of the force (so Fy = Fz = 0), and the displacement to point along any of th...You can also see this directly from Equation (???), by choosing the x axis to point in the direction of the force (so Fy = Fz = 0), and the displacement to point along any of the other two axes (so Δx = 0): the result is W = 0. So—for this very simple system—we could rephrase the result (???) by saying that the work done by the net external force acting on the system (the particle in this case) is equal to the change in its total energy.
