9Th Class Physics New Book Chapter 4 || Lecture 1 || Turning Effects Of Forces

This is the new book of class 9 physics published by pctb or punjab curriculum and textbook board lahore for all punjab boards and chapter 4 is about turning effect of forces and this video includes topics like, like and unlike parallel forces, addition of forces, turning effect of a force, moment of force or torque and couple. #9thphysicsnew #9thpphysics