Question

Three identical spheres, each of mass 1 kg are
placed touching each other with their centres on a
straight line. Their centre are marked P, Q and R
respectively. The distance of centre of mass of the
system from P is :
PQ +PR+QR
(1)
3
(3) PQ+QR
PR+QR
(3)
3​

Answer 1

Answer:

PQ

COM is at point q . Com of spheres is at their centre . and P and R is at their middle point which is Q . and one m is already at q