Two identical balls each of radius $10 c m$ are placed touching each other. The distance of their centre of mass from the point of contact is :

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Two identical balls each of radius $10 c m$ are placed touching each other. The distance of their centre of mass from the point of contact is zero as the centre of mass coincides with their point of contact.

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Two identical balls each of radius 10cm are placed touching each other. The distance of their centre of mass from the point of contact is :

Two identical balls each of radius 10cm are placed touching each other. The distance of their centre of mass from the point of contact is zero as the centre of mass coincides with their point of contact.

Two identical balls each of radius $10 c m$ are placed touching each other. The distance of their centre of mass from the point of contact is :

Two identical balls each of radius $10 c m$ are placed touching each other. The distance of their centre of mass from the point of contact is zero as the centre of mass coincides with their point of contact.