Question

Three identical spheres, each of mass 1kg and radius R are placed touching each other with their centers 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..​

Answer 1

Answer:

pq-pr/3

step by step explanation

Answer 2

Answer:

The centre of mass of from P

x= M p

+M

q

+M

R

M

p

(x

p

)+M

q

(x

q

)+M

R

(x

R

)

= M+M+M

M(0)+M(PQ)+M(PR)

= 3M

M(PQ+PR)

=3PQ+PR