本题目来源于试卷: Physics Unit8: Rotational Motion，类别为 Generic Physics
[单选题]
Two equal forces are app p+fajl(7- ywfr*)jngkd ;vj0*jf9mmlied to a do(n)0wxgu 7+a ojad a82pbqn /5 rb*brgor at the doorknob. The first force is applied perpendicular t8b2) bxbonap5 a n 0g*+jg7qura (rdw/o the door; the second force is applied 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