Need help with practice problem

A conducting rod whose length is 25 cm is placed on O a U-shaped metal wire with 10 Q resistance as shown in R=10 0 L=25 cm V=6m/s the figure. The wire and the rod are in the plane on the O paper. A constant magnetic field of strength 0.4 T is applied perpendicular and out of the paper. An applied force moves the rod to the right with a constant speed of 6 m/s. Find: a) The magnitude of the induced emf () in the wire. b) The magnitude and direction of the induced current in the wire (CW or CCW). c) The external force necessary to ensure that the rod is moving at constant velocity at that instant