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

  1. Class 9
  2. Chapter 11 Class 9 - Work and Energy

About the Author

CA Maninder Singh's photo - Expert in Practical Accounts, Taxation and Efiling
CA Maninder Singh
CA Maninder Singh is a Chartered Accountant for the past 9 years and a teacher from the past 16 years. He teaches Spoken English, Written English, Grammar and Vocabulary at Englishtan.