Question

Shift of centre of mass generally occurs due to
1) Addition of matter
2) Removal of matter
3) Change in shape
4) All the above

Answer 1

Answer:

Let P={-1,1} , Q={| 2 = 4, ∈ } and R = {-2,-1,1} . State which of the following are TRUE and which are FALSE. (i)P↔Q (ii)P=Q (iii)Q↔R (iv)P↔R (v)Q=R (vi)P=R

Answer 2

Answer:

4) All of the above

As all these are the main factors for shift of centre of mass

hope this will help you