29. The point where total mass of a body is supposed to be concentrated is known as A.Dead centre B.Centre of mass C.Centre of gravity D.Centre of motion
Option B Solution: The centre of mass of a body or a system of particles is defined as a single point at which the whole mass of the body or system is imagined to be concentrated and all the applied forces acts at that point. It is that point that moves when forces are applied on the body.
