[单选题]
A 10-N force is needed to move an object with a constant velocitk)bl*wartve ,k3 0 bt8y of 5.0 m/,z5wl5 5 ky(cvfk-wn h) -anxas. What power must lkncw5f)kzx-av(n 5,y w-ah 5 be delivered to the object by the force?
A. $0.50 \; W$
B. $1.0 \; W$
C. $50 \; W$
D. $100 \; W$
