Question

A force of 7 N acts on an object. The displacement is, say 8 m, in the direction of the force.Let us take it that the force acts on the object through the displacement. What is the work done in this case?

Answer 1

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• When a force F acts on an object to displace it through a distance S in its direction,
• then the work done W on the body by the force is given by:
• Work done = Force × Displacement
• W = F × S
• Where,
• F = 7 N
• S = 8 m
• Therefore, work done, W = 7 × 8
• = 56 Nm
• = 56 J

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Answer 2

Answer:

1. work done= force •displacement
2. here force=7newton and displacement =8m
3. Force = 7N• 8m=56 joule