Current Attempt in Progress Next question The only force acting on a 2.0 kg body as it moves along the positive x axis has an x component Fx = -6x N, where x is in meters. The velocity of the body at x = 2.5 m is 9.8 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 5.0 m/s? (a) Number i Units (b) Number i UnitsCurrent Attempt in Progress A 5.0 kg block moves in a straight line on a horizontal frictionless surface under the influence of a force that varies with position as shown in the figure. The scale of the figure's vertical axis is set by Fs = 8.00 N. How much work is done by the force as the block moves from the origin to x = 8.0 m? F Force (N) 0 -Fso 2 4 6 8 Position (m) Number Units