The centre of mass of a body

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Question

(B) The centre of mass $(COM)$ is a point that represents the average position of all the mass in a system.It does not necessarily have to be located

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May lie within,outside or on the surface of the body

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(B) The centre of mass $(COM)$ is a point that represents the average position of all the mass in a system.It does not necessarily have to be located within the physical material of the object.For a solid sphere,the $COM$ lies within the body.For a hollow object or a ring,the $COM$ lies outside the body.For certain shapes like an $L$-shaped lamina,the $COM$ may lie on the surface or even outside the material.Therefore,the $COM$ may lie within,outside,or on the surface of the body.

Element	$M^{3+}/M$	$M^{+}/M$
$Al$	$-1.66$	$+0.55$
$Tl$	$+1.26$	$-0.34$

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Element $M^{3+}/M$ $M^{+}/M$

$Al$ $-1.66$ $+0.55$

$Tl$ $+1.26$ $-0.34$

Based on these data,which of the following statements is correct?

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