centre of mass class 9 | metric part 1 physics, chapter 4 | 9th class physics | centre of mass

centre of mass class 9 | metric part 1 physics, chapter 4 | 9th class physics | centre of mass Related searches centre of mass physics centre of mass class 9 centre of mass class 11 centre of mass class 11 physics centre of mass examples centre of mass hindi centre of mass in urdu centre of mass in hindi centre of mass in physics centre of mass introduction centre of mass jee centre of mass jee mains centre of mass jee mains questions centre of mass jee advanced centre of mass kya hota hai centre of mass kota centre of mass lecture centre of mass meaning centre of mass neet centre of mass ncert centre of mass questions matric part 1 physics physics matric part 1 part 1 physics 9th class physics 9th class physics chapter 4 9th physics 9th physics chapter 4 class 9 physics physics class 9 physics 9th class physics matric part 1 chapter 4 ch 4 9th physics ch 4 9th class physics ch 4 atifahmedofficial atifahmadofficial atif ahmad Official atif ahmed Official 4.6 CENTRE OF MASS It is observed that the centre of mass of a system moves as if its entire mass is confined at that point. A force applied at such a point in the body does not produce any torque in it i.e. the body moves in the direction of net force F without rotation. Consider a system of two particles A and B connected by a light rigid rod as shown in figure 4.16. Let O is a point anywhere between A and B such that the force F is applied at point O as shown in figure 4.17. If the system moves in the direction of force F without rotation, then point O is the centre of mass of the system. Does the system still move without rotation if the force acts elsewhere on it? (i) Let the force be applied near the lighter particle as shown in figure 4.18. The system moves as well as rotates. (ii) Let the force be applied near the heavier particle as shown in figure 4.19. In this case, also the system moves as well as rotates. Centre of mass of a system is such a point where an applied force cause #centreofmass #class9 #9thclassphysics #9thphysics #matricpart1 #matricpart1physics #matricphysicspart1 #atifahmadofficial #atifahmedofficial #urdu #hindi #freeonlineclasses #onlinephysicslecture