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**Three identical spheres, each of mass 3 kg are placed touching each other with their centres lying on a straight line. The centres of the spheres are marked as P, Q and R respectively. The distance of centre of mass of the system from P is **

### Options

(a) PQ+QR+PR/3

(b) PQ+PR/3

(c) PQ+QR+PR/9

(d) PQ+PR/9

### Correct Answer:

PQ+PR/3

### Explanation:

No explanation available. Be the first to write the explanation for this question by commenting below.

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Topics: Motion of system of Particles and Rigid Body
(73)

Subject: Physics
(2479)

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