3Hint:
no external force acts on the system of rod and the hollow sphere and so center of mass remains at rest
15 Answers
3
1i think you mean that the horizontal external force is zero [1]
21philip can u solve it..... sum more hintssssss........ LOL......
1take point of contact as (0,0)
and find the x component of the COM
if it turns out to be R/4 (it should turn out to be this)
problem solved [1]
sorry now feeling too lazy to put pen on paper so didnt give it a serious try
but i think it is correct
1arey haan yaar b hi hai :)
i did some calculation mistake...
very sorry .......
21oh k gr8 thnx........
but how did u get orig center of mass as da mid pt line joinin centre and mid pt of rod?????????
is it a prop or sumthing???
genereal dbt :
how do u calculate COM of such figures??????
1see, com of a rod.. is in its center.. and that sphere, is the center of the sphere..
so the com of the combination is in the line joining this two..
1and here it is given that mass of both are same...
so com of combination will be midpoint of the two ..
i hope u got?
21YEAH!!!!!!!!!!!!!!!
HAD FORGOTTEN EQUAL MASSES............
GUD GUD..... THNX YAAR.......