Class 9 Science NCERT Book Chapter 9 - Force and Laws of Motion is available here in PDF format. Download the latest NCERT chapter and NCERT Solutions for exam preparations in 2021-2022.

Get CBSE Class 9 Science Extra Questions for Chapter 9 Force and Laws of Motion. Download these important questions to prepare for you exams.

Newton's laws pertain to the motion of massive bodies in an inertial reference frame, sometimes called a Newtonian reference frame, although Newton himself never described such a reference frame.

What, then, happens to a body when an external force is applied to it? That situation is described by Newton's Second Law of Motion.