Are you looking for #Maths#formulas for all classes? if yes then you are on the right page academic team of Physics Wallah and its proficient #teachers uploaded the Maths formulas pdf for #classes 7 to 12. We have prepared separate sheets for each class and for each class we have uploaded one or two pages of maths formulas in each chapter
Advantages and disadvantages of friction Class 8 | PWpw.live
Question of Class 8-Advantages and Disadvantages of friction : Advantages and disadvantages of friction:Friction always opposes the relative motion between any two bodies in contact. Therefore extra energy has to be spent in overcoming friction. This reduces the efficiency of machine
