Question

Particles of masses 100 and 300 gram have
position vectors (2ỉ + 5j+13k) and
(-6î +4j+2Â). Position vector of their centre
of mass is
1)
16. 17
17 7 20. 17. 7
1+ j+-k 2)—i+ -jt k
4 4 4
4 4. 4
16. 17 19
3) -
it-j+
-j+k
4 4 4
4)-=i+
16 13 19
J + k
4 4 4​

Answer 1

Answer:

rticles of masses 100 and 300 gram have

position vectors (2ỉ + 5j+13k) and

(-6î +4j+2Â). Position vector of their centre

of mass is

1)

16. 17

17 7 20. 17. 7

1+ j+-k 2)—i+ -jt k

4 4 4

4 4. 4

16. 17 19

3) -

it-j+

-j+k