Question

explain some situations where the centre of gravity of man lies outside the body

Answer 1

I think I’m getting what you’ve asked…

you probably don't understand the physical significance of center of gravity.

Let’s clear this with an example…

there a body, anything a ball, a spoon, your chair, a stick, anything.( I take a cycle tire for instance. suppose there’s no spoke no center of the wheel just the rim)

If you give me a needle and ask me balance the standing wheel over the needle then I would just locate the center of gravity at the base and put the needle just at that point. This way I’ll be able to balance it forever (theoretically).

NOW,

If I ask you to do the same by applying the same theory to balance the wheel but this time in an horizontal position i.e. the plane of wheel is horizontal and it’s axis is vertical.

now if you can imagine that’s a tricky job that I've given you. How’ll you do it?

That’s actually impossible because there is no solid object that is a part of the wheel at which the needle can be kept again!

because the center of gravity lies outside the region in which body exists (which is the external surface of the solid part of the wheel). It is at the center of the rim where there is no part of wheel.

So , to do what I asked, you’ll need to tie some strings or spokes or anything to put some solid object at the center which can sustain the weight of the wheel.

Hope you’re getting my point.
please mark it as brainliest
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Answer 2

Answer:

What is refractive index of glass