QUESTION 3: A 0.265 m long metal rod is capable of y sliding frictionlessly between the prongs of the U-shaped wire as shown. The entire setup is surrounded by a 6.32 T magnetic field pointing vertically up. If the rod's velocity is 2.85 m/s to the right, a) What is the magnitude of the emf induced in the rod? [V] b) What is the direction of the emf in the rod?1{ i , j, or k } c) If the rod's 0.620 0 resistance is the only resistance in this setup, how much current is flowing through the loop? [A] d) And what is the direction (clockwise or counter-clockwise) of the loop's current? e) And what is the force vector required to keep the rod's velocity constant? [N] i + [N]j + [N] k