[单选题]
Consider the weight,/b;w wrtnz2hxmt7 3jm ,+3lpw u* 15j1ia ytngu e*kus;1(jhs $W$, of a skydiver falling through air with a drag force $F_{drag}$ If the skydiver experiences terminal velocity, which of the following best represents the skydiver's motion by means of a free body diagram?
A.
B.
C.
D.
参考答案: A
本题详细解析: Explanation:
At terminal velocity there is no accleration. Forces must be balanced, therefore thhe drag force is equal and opposite to the weight.
