Question

bodies of masses 4 kg and 2 kg are attached at the ends of massless rod. the position of 4 kgs and 2 kgs are (2i+5j) m and (4i+2j) m. then the position of centre of mass of the system is​

Answer 1

Answer:

Length of rod=

(2−4)

2

+(5−2)

2

=

4+9

=

13

Center of mass co-ordinate in M(x,y)

x=

3+2

3×2+4×2

=

5

14

y=

5

3×5+2×2

=

5

19