1. Class 9
  2. Chapter 11 Class 9 - Work and Energy
  3. Questions from Inside the chapter

Question 4 Page 149

Last updated at June 8, 2019 by

Slide1.JPG

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

    3. Questions from Inside the chapter

    Examples from NCERT Book →

Transcript

Question 4 Page 149 A pair of bullocks exerts a force of 140 N on a plough. The field being ploughed is 15 m long. How much work is done in ploughing the length of the field? Force exterted = F = 140 N Distance = s = 15 m Work done = Force × Distance = 140 × 15 = 2100 J Work done is 2100 J

Class 9
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.