Suppose a boat moves at 11.2 m/s relative to the water. If the boat is in a river with the current directed east at 3.30 m/s, what is the boat's speed relative to the ground when it is heading east, with the current, and west, against the current? (Enter your answers in m/s.)

(a)east with the current m/s

(b)west against the current m/s