Select Board & Class

Login

Work, Energy And Power

Work – energy theorem

  • Work done by net force is equal to the change in kinetic energy of the body
  • (Dot product, hence it is a scalar quantity)
  • No work is done if
    • displacement is zero

    • force is zero

    • force and displacement are mutually perpendicular i.e.,


        

  • Kinetic energy, 



 

  • Work done by variable force

             
 

  • Work done is the area subtended by the …

To view the complete topic, please

What are you looking for?

Syllabus