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  • As shown in the figure a Hollow hemisphere of mass and radius <img alt="R" src="http://entrancecorner.oncodecogs.com/gif.

As shown in the figure a Hollow hemisphere of mass M and radius R is given with its centre at the origin 0. If the point P is on y-axis and is at a distance \left ( 3R /4\right )  from O.

Then what is the distance from C.O.M of Hollow hemisphere?

Option: 1

\frac{R}{2}


Option: 2

\frac{R}{4}


Option: 3

R/3


Option: 4

3R/A


Answers (1)

best_answer

 

As for the Hollow Hemisphere, its y-coordinates of COM is given as

 \boldsymbol{y_{cm}= \frac{R}{2}\ from\ base}

So for the below figure

 

As OQ=R/2

And OP=3R/4

So, PQ=OP-OQ=R/4

Posted by

Gautam harsolia

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