The only force acting on a 2.4 kg body as it moves along the positive x axis has an x component Fx = -4x N, where x is in meters. The velocity of the body at x = 2.0 m is 8.5 m/s. (a) What is the velocity of the body at x = 4.6 m? (b) At what positive value of x will the body have a velocity of 4.1 m/s? (a) Number Units (b) Number i Units