Request a call back

Join NOW to get access to exclusive study material for best results

CBSE Class 9 Answered

Derive an expression for the work done when a force is acting on an object in the direction of its displacement. A pair of bullocks exerts a force of 150 N on a plough. The field being ploughed is 15 m long. How much work is done in ploughing the length of the field?
Asked by Topperlearning User | 20 Sep, 2016, 10:02: AM
answered-by-expert Expert Answer
  1. When a force F displaces a body through a distance s in the direction of the applied force, then the work done W on the body is given by the expression:
    Work done = Force × Displacement

    W = F × s  
     
  2. Work done by the bullocks is given by the expression:
    Work done = Force × Displacement
    W = F ×  s
    Where,

    Applied force, F = 150 N
    Displacement, s = 15 m
    W = 150  × 15 = 2250 J   
    Hence, 2250 J of work is done in ploughing the length of the field.
Answered by | 20 Sep, 2016, 12:02: PM
CBSE 9 - Physics
Asked by sadhanaasadhanaa67 | 04 Feb, 2024, 12:27: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Physics
Asked by atiquzzaman100 | 21 Oct, 2021, 01:35: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Physics
Asked by harikishortomar | 03 Jan, 2021, 10:52: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Physics
Asked by varadaawasekar | 08 Oct, 2020, 02:16: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Physics
Asked by Deepak | 06 Jul, 2020, 06:23: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Physics
Asked by ashabhardwaj490 | 27 Jan, 2020, 06:17: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Physics
Asked by kavitavinaysharma | 23 Jan, 2020, 10:05: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
Get Latest Study Material for Academic year 24-25 Click here
×