本题目来源于试卷: Physics Unit8: Rotational Motion，类别为 Generic Physics
[单选题]
Two equal forces are applied to a do3v z mrks)w mro12ff9(od5w azh gakgj--f8)0 or. The first force is applied at the midpoint of the door; the second force is applied at8zw jk a-5ofgah0d) -g the doorknob. Both forces are applied perpendicular to the door. Which force exerts the greater torque?
A. the first at the midpoint
B. the second at the doorknob
C. both exert equal non-zero torques
D. both exert zero torques
参考答案: B
本题详细解析:
暂无
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Post time 2024-1-22 02:51:16