Your answer is partially correct. The figure gives the acceleration of a 3.0 kg particle as an applied force moves it from rest along an x axis from x = 0 to x = 9.0 m. The scale of the figure's vertical axis is set by as = 9.0 m/s'. How much work has the force done on the particle when the particle reaches (a) x = 4.0 m, (b) x = 7.0 m, and (c) x = 9.0 m? What is the particle's speed and direction (give positive answer if the particle moves along x axis in positive direction and negative otherwise) of travel when it reaches (d) x = 4.0 m, (e) x = 7.0 m, and (f) x = 9.0 m? a (m/s?) 6 8 x (m) (a) Number 94.5 Units J (b) Number 121.5 Units (c) Number 81.0 Units J (d) Number 7.9 Units m/s (e) Number 9.0 Units m/s (f) Number 7.3 Units m/s