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对本刊88年第1期P35所刊《一个有固定转轴物体的平衡问题的辨析》一文(以下简称《辨析》),先后收到吉林图们市二中张海波、浙江新昌县澄潭中学谢尔德、河北荣城中学范杰、韩主彪、安徽淮南十一中方镜菊等来稿有不同看法,现摘登如下与作者商榷。《辨析》一文中的分析方法,实质上把人体所受的拉力T和重力G入移至横梁上,然后求出支点右侧所受各力的力矩和: M=-TsinθL- G人L+Tsinθx∵ TsinθL>Tsinθx∴横梁将顺时针转动。
For the article “Discussion on a Balanced Problem with a Fixed Axis Object” (hereinafter referred to as “Differential Analysis”) published in P35 of the 1st issue of the magazine in the first edition of the journal 88, we received Zhang Haibo of Erzhongzhong, Tumen City, Jilin Province, and Chengde Middle School, Xinchang County, Zhejiang Province. , Hebei Rongcheng High School Fan Jie, Han Zhuo, Anhui Huainan 11 China Fang Ju and other contributions have different views, are excerpted and discussed with the author. The analysis method in the article “Differentiation” essentially moves the human body’s pulling force T and gravity G onto the beam, and then finds the moments of the forces on the right side of the fulcrum: M=-TsinθL- G person L+ Tsinθx∵ TsinθL>Tsinθx∴ The beam will rotate clockwise.