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wchvball13

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## Homework Statement

A uniform plank of length 4.6 m and weight 210 N rests horizontally on two supports, with 1.1 m of the plank hanging over the right support. To what distance x can a person who weighs 448 N walk on the overhanging part of the plank before it just begins to tip?

## Homework Equations

__W1(x1)=W2(x2)__= Xcm

W1+W2

## The Attempt at a Solution

210(3.5) + 658(1.1)

210(3.5) + 658(1.1)

210 + 448

Xcm=1.87m

Not even sure if this is right, and I'm stuck after this. The way I understand it, once the center of gravity passes the second support, the plank will start to tip. But I don't know how to figure out how to calculate how far the person can walk before the center of gravity gets to that point.

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