Question

NCERT CLASS IX - Science Textbook
Chapter 11 - Work and Energy

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?

Answer 1

force =140N
displacement=15m
work done=force*displacement=140N*15m=2100J
                 
                   SO, work done is 2100J                       

Answer 2

┏─━─━─━─━∞◆∞━─━─━─━─┓ ✭✮ӇЄƦЄ ƖƧ ƳƠƲƦ ƛƝƧƜЄƦ✮✭ ┗─━─━─━─━∞◆∞━─━─━─━─┛

➧Force = 140 N                 ➧Displacement = 15 m

❱ Work Done ➾ F × D        
            ➾ 140 × 15                      ➾ 2100 J ...✔

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