Problem 10: A block with a mass of m = 26 kg rests on a frictionless surface and is subject to two forces acting on it. The first force is directed .X in the negative x-direction with a magnitude of F1. The second has a magnitude of F2 and acts on the body at an angle 0 = 11 measured from m F horizontal, as shown. TherePart (b) Write an expression for the component of net force, Fnet,x, in the x- direction, in terms of the variables given in the problem statement. Expression : Fnet,x = Select from the variables below to write your expression. Note that all variables may not be required. cos(), cos(0), sin(), sin(0), tan(), tan(0), 0:, I}, 0, (1, F1, F2, g, m, t Part (c) Write an expression for the magnitude of the normal force, F N, acting on the block, in terms of F 2 and the other variables of the problem. Assume that the surface it rests on is rigid. Expression : EN = Select from the variables below to write your expression. Note that all variables may not be required. cos(), 008(0), sin(), sin(0), tan(), tan(0), a, I}, 0, (1, F1, F2, g, m, t Part (d) The two forces change such that F1 = 8.5 N and F 2 = 18.75 N. Based on this change, the block may no longer be in static equilibrium. Find the block's acceleration in the xdirection, ax, in meters per second squared. Numeric : A numeric value is expected and not an expression. (13 =