Centre of Mass

two Ice skaters ram n lakhsman [hehe ...nice names] are holding two sides of a massless rod ......ram is twice as heavy as lakshman.....the centre of mass of the two skaters lie along the rod....

where will they meet::
1.if ram moves hand by hand towards lakshman
2.if lakshman moves hand by hand towardss ram...
3.if both move hand buy hand towards each oder....

2 Answers

62
Lokesh Verma ·

In the earth frame they will meet at the center of mass. always.
The center of mass will be 1/3rd distance from Ram

This is bcos if u take these 3(ram, laxman and the rod) as a system. there is no external force

In the reference to the rod.. they will obviously meet at different points.

1
ratendra ·

centre of mass in all cases..
as centre of mass hs no force acting over it

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