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jmdict 2691050 Active (id: 2178787)
抗力
こうりょく
1. [n] {physics}
▶ drag
▶ fluid resistance
2. [n] {physics}
▶ (surface) reaction force (i.e. normal force and frictional force)



History:
6. A 2022-02-15 00:56:49  Jim Breen <...address hidden...>
  Comments:
It specifically applies to things sliding on a surface, so it might help to mention that.
  Diff:
@@ -19 +19 @@
-<gloss>reaction force (i.e. normal force and frictional force)</gloss>
+<gloss>(surface) reaction force (i.e. normal force and frictional force)</gloss>
5. A* 2022-02-15 00:51:11  Robin Scott <...address hidden...>
  Refs:
daijr: 物体が接触面に力を及ぼすとき,面から物体に働く力。面に垂直に働く成分と平行に働く成分とがあり後者は摩擦力という。
https://www.corrosionpedia.com/definition/1608/reaction-force-compressive-strength
  Comments:
Frictional force is just one of the components.
Maybe this works.
  Diff:
@@ -19 +19 @@
-<gloss>frictional force</gloss>
+<gloss>reaction force (i.e. normal force and frictional force)</gloss>
4. A 2022-02-15 00:20:55  Jim Breen <...address hidden...>
  Comments:
Maybe this. The JEs seem to combine them.
  Diff:
@@ -14,0 +15,5 @@
+</sense>
+<sense>
+<pos>&n;</pos>
+<field>&physics;</field>
+<gloss>frictional force</gloss>
3. A* 2022-02-14 12:10:36  Robin Scott <...address hidden...>
  Comments:
The kokugos have a second sense that describes the normal force and the friction force collectively. Is there a term for this in English? Surface force?
  Diff:
@@ -11,0 +12 @@
+<field>&physics;</field>
2. A 2012-03-15 01:21:47  Jim Breen <...address hidden...>
  Refs:
GG5, etc.
  Diff:
@@ -12,1 +12,2 @@
-<gloss>drag (fluid resistance)</gloss>
+<gloss>drag</gloss>
+<gloss>fluid resistance</gloss>
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