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(B) The surface is smooth,so there is no friction at the contact surface. According to Newton's second law,the linear acceleration $a$ of the centre o

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no relation between $h$ and $R$

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(B) The surface is smooth,so there is no friction at the contact surface. According to Newton's second law,the linear acceleration $a$ of the centre of mass is given by $a = \frac{F}{m}$,where $F$ is the applied force and $m$ is the mass of the sphere. Since the force $F$ and the mass $m$ are constant,the acceleration $a$ is independent of the height $h$ at which the force is applied. Therefore,there is no specific relation between $h$ and $R$ required to maximize the acceleration; it remains constant for any $h$.

$A$ solid sphere of radius $R$ is placed on a smooth horizontal surface. $A$ horizontal force $F$ is applied at a height $h$ from the lowest point. For the maximum acceleration of the centre of mass,which is correct?

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