A 3.0 kg particle starts from rest at x = 0 and moves under the influence of a single force Fx = 6 + 4x - 3x2, where Fx is in newtons and x is in meters.
(a) Find the work done by the force as the particle moves from x = 0 to x = 1.5 m.
(b) Find the power delivered to the particle when it is at x = 1.5 m.