Question

a pair of bullocks exert a force of 140n on a plough the field being ploughed is 15 meters long how much work is done in ploughing the length of field

Answer 1

Hey,
$w = f \times s$
where w is work done,f is force & s is distance travelled

So, work done will be 2100 J

HOPE THIS HELPS YOU.

Answer 2

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

➧Force = 140 N                 ➧Displacement = 15 m

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

_________                  Thanks...✊