The 20 kg block is subjected to a force of F 580 N acting at an angle of 35 and a force of F2 = 410 N acting in the negative x direction = while in contact with a smooth surface. Assume the box can be treated as a point mass, that the acceleration due to gravity is |g| = 9.81 m/s^2, and that the box will stay in contact with the surface. Initially, the box is at rest. F F 2 y L. x (a) What is the initial acceleration of the block? = 3 i m/s^2 (b) What is the magnitude of the normal force from the surface acting on the block? N = 529 N (c) What is the velocity of the block after 2.5 seconds of motion? Vx = 2 7 m/s (d) If friction were present (i.e. the surface was not smooth), the magnitude of the velocity would be (No answer given) was found in part (c).