Question 1 Page 148 - Chapter 11 Class 9 - Work and Energy

Last updated at August 14, 2026 by

A force of 7 N acts on an object. The displacement is, say 8 m, in the direction of the force (Fig. 11.3). Let us take it that the force acts on the object through the displacement. What is the work done in this case?

Fig 11.3.jpg

Answer

Force = 7 N

Displacement = 8m

 

Work done = Force × Displacement

        = 7 × 8

        = 56 J

 

Hence, Work done is 56 J

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