Math Is Fun Forum

ROBBYM

Member

Registered: 2008-04-24

Posts: 10

circular motion

A bead lies on a smooth table connected to a light string through a hole in the table to a 2nd bead of mass M. The 1st bead moves in a circle of radius r while the 2nd bead remains stationary. show the speed of the 1st bead is

luca-deltodesco

Member

Registered: 2006-05-05

Posts: 1,470

Re: circular motion

for the first bead to move in a circle of radius r, it needs an acceleration

or force

as the second bead is stationary, its weight must be providing the centripetal acceleration entirely

Last edited by luca-deltodesco (2008-04-28 09:01:15)

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ROBBYM

Member

Registered: 2008-04-24

Posts: 10

Re: circular motion

Thank you very much i knew it was something simple i just couldn't find a way of writing it

Identity

Member

Registered: 2007-04-18

Posts: 934

Re: circular motion

Haha, I also asked this one

http://mathisfunforum.com/viewtopic.php?id=9738