11. During a certain time interval, a constant force delivers an average power of 4 watts to an object. If the object has an average speed of 2 meters per second and the force acts in the direction of motion of the object, the magnitude of the force is
(A) 16 N
(B) 8 N
(C) 6 N
(D) 4 N
(E) 2 N
(A) 16 N
(B) 8 N
(C) 6 N
(D) 4 N
(E) 2 N