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Q: When a person walks 4 meters with a constant force of 12N, the work done by him is –
  • A. 6J
  • B. 2J
  • C. 48J
  • D. 3J
Correct Answer: Option C - Given, Force (F) = 12N Displacement (d) = 4m Work (W) = ? Work (W) = F.d W = 12×4 = 48J
C. Given, Force (F) = 12N Displacement (d) = 4m Work (W) = ? Work (W) = F.d W = 12×4 = 48J

Explanations:

Given, Force (F) = 12N Displacement (d) = 4m Work (W) = ? Work (W) = F.d W = 12×4 = 48J