Bilingual edition: English is preserved and Chinese follows each unit. Terminology uses the confirmed v20260916 glossary; automated semantic review remains traceable.
中英双语版：英文原文完整保留，中文紧随对应单元；术语采用 v20260916 确认表，自动语义审校结果可追溯。

Constant Acceleration Motion

匀加速运动

 Application of Newton's second law to a single mass.

Net force = mass x acceleration

合外力等于质量乘以加速度
For a horizontal applied force F =N.
Net force = N = kg x m/s²

You may edit any of the data. When finished with data entry, click on the quantity you desire to calculate in the formula above. Quantities will not be forced to be consistent until you click on the desired quantity.


In U.S. common units this becomes:
Net force = lb = slug x ft/s²

将牛顿第二定律应用于单个质量。对于水平施加的力 F = N。合力 = N = kg × m/s²。你可以编辑任何数据。在数据输入完成后，点击公式上方你希望计算的量。在点击你希望计算的量之前，量不会被强制保持一致。在美制常用单位中，这变为：合力 = lb = slug × ft/s²
中文译文中的待填/计算数值依次对应：1：fa 2：f1 3：m1 4：a1 5：f2 6：m2 7：a2。实际数值以上方原输入框为准。

Add friction

加摩擦
 Index

Newton's laws

Standard mechanics problems
索引 牛顿运动定律 标准力学问题
 
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