The resultant force of a couple is ………?

  • A Infinity
  • B Zero
  • C One
  • D Half
jamb 2015physics

The correct answer is B. Zero

Note: moment of a couple = force × length (fL)

The tangential force is actingin an opposite direction alongside its length

i.e f1 L1 = f2L2

f2L2 − f1 L1 = 0(i.e Zero)

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