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Q: If an aeroplane travelled 4000m distance and work done is 20000J. Then force applied on it is
  • A. 5 N
  • B. 50 N
  • C. 0.20 N
  • D. 10 N
Correct Answer: Option A - Work = Force x Displacement 20000 = Force x 4000 F = 20000/4000 = 5 N
A. Work = Force x Displacement 20000 = Force x 4000 F = 20000/4000 = 5 N

Explanations:

Work = Force x Displacement 20000 = Force x 4000 F = 20000/4000 = 5 N