Question Text
Question 1 :
asssertion:- centre of mass is hypothetical concept.
reason:- as it is supposed that the whole mass of thr body is ponted.
Question 2 :
the centre of mass of the system necessarily lies inside the body?
Question 4 :
assertion:-Newton's Law be applicable to only isolated system.
reason:- since whole mass of the body is supposed to be concentrated at a single point
Question 5 :
assertion:- the car stops due to the internal force applied on the brakes.
reason:- the car stops as we apply brake there is a large number of frictional force applied on the car wheels and the car stops.
Question 6 :
two masses M1 and M2 are placed at the two vertices of equilateral triangle. third mass M3 is placed at third vertex of the equilateral triangle determine the position of centre of mass?
Question 7 :
In the HCl molecule, the separation between the nuclei of the two atoms is about 1.27 A˚(1A˚=10−10 m). Find the approximate location of the CM of the molecule, given that a chlorine atom is about 35.5 times as massive as a hydrogen atom and nearly all the mass of an atom is concentrated in its nucleus.
Question 9 :
if there is no external force then what will happen to centre of mass?
Question 10 :
where does centre of mass lies in two particle system if one mass is larger than other?