Rotational Motion Question 176
Question: Two particles, each of mass 2 kg are put at (2m, 0) and (0, 2m), . Now 1 kg mass of particle A is put on to the particle B. The change in x-coordinate of centre of mass of the system is
Options:
A) 0.5m
B) 1m
C) 1.5m
D) None of these
Show Answer
Answer:
Correct Answer: A
Solution:
- [a]
$ x_i=\frac{2 \times 2+2 \times 0}{2+2}=1 m .$
and $ x_f=\frac{1 \times 2+3 \times 0}{1+3}$ =0.5 m .
$ \therefore \Delta x = 0.5 m $
