Ncert solutions for class 9 maths chapter 11

Dear Students, CLICK HERE FOR VIDEO: https://youtu.be/FAP6lAoud00This video contains explanation of Chapter – 11 of class 9th NCERT.In this video we understood what is work  and when we say that work is done.We studied when can work done be positive, negative or zero.Work by a force acting on object is when the force applying on object displaces […]