A solid sphere of mass M and radius R is...

A solid sphere of mass `M` and radius `R` is pulled horizontally on a rough surface as shown in Fig. Choose the incorrect alternatives.

The acceleration of the centre of mass is `F//M` `

The acceleration of the centre of mass is`(2)/(3)(M)/(F)`

The friction force on the sphere acts forward

The magnitude of the friction force is `F//3`

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