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【单选题】
The accelerating force of the wind on a small 200-kg sailboat is 707 N northeast. If the drag of the keel is 500 N acting west, what is the acceleration of the boat?A.
1.5 m/s^2 due east
B.
2.5 m/s^2 due north
C.
3.0 m/s^2 northeast
D.
2.0 m/s^2 north by northwest
E.
none of these
F.
1.0 m/s^2 north by northwest
G.
3.5 m/s^2 northeast
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