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 toiz6nnyz t19 /fi hom,5 a vv5nbr ho3za,41z t7bdoor at the doorknob. The first force is applied perpendicular to the door; the second force is appliedhab1tn3 v4,ov b5rzz7 at $30^{\circ}$ to the plane of the door. Which force exerts the greater torque?
A. the first applied perpendicular to the door
B. the second applied at an angle
C. both exert equal non-zero torques
D. both exert zero torques
参考答案: A
本题详细解析:
暂无
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Post time 2024-1-22 02:51:16