X' In the system shown in the figure below, a horizontal force F object as a function of F X acts on an object of mass m = 6.50 kg. The horizontal surface is frictionless. Consider the acceleration of the sliding mi m2 FX (a) For what values of Fx (in N) does the object of mass m x-direction be to the right.) = 3.00 kg accelerate upward? (Indicate the direction of the force with the sign of your answer. Let the positive F.> N X (b) For what values of Fx (in N) is the tension in the cord zero? (Indicate the direction of the force with the sign of your answer. Let the positive x-direction be to the right.) F X N