A block of ice with mass 4.00 kg is initially at rest on a frictionless, horizontal surface. A worker then applies a horizontal force F to it. As a result the block moves along the x-axis such that its position as a function of time is given by x(t) = at² + ßt³, where a = 0.2 m/s² and ß = 0.02 m/s³. Calculate the work done by the force during the first 4.00 s of the motion ? А. 15.8 J В. 40 J С. 1.5 J D. 5 J E. 0.89 J
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