Fig 8-50 shows a plot of potential energy U versus position x of a 0.90 kg particle that can travel only along an x axis. (Nonconservative forces are not involved). Three values are UA = 15.0j, UB = 35.0j, and UC =45.0j. The particle is released at x = 4.5 m with an initial speed of 7.0 m/s, headed in the negative x direction. (a) if the partcle can reach x = 1.0 m, what is its speed there, and if it cannot, what is its turning point? What are the (b) magnitude and (c) direction of the force on the particle as it begins to move to left of x = 4.0m? Suppose instead, of the particle headed in thee positive x direction when it is released at x = 4.5m at speed 7.0m/s. (d) if the particle can reach x = 7.-m, what is its speed there, and if it cannot, what is its turning point? What are the (e) magnitude and (f) direction of the force on the particle as it begins to move to the right of x = 5.0 m?