How Close to the edge of a 20kg table, can a 66kg person sit without tipping it over?
The table is 2.2m long and there are two legs placed 0.5 m from each end of the table. with 1.2 meters between the two legs. the top of the table is 0.80 m tall

Question

anonymous · Answer

0.3981m

anonymous · Answer

what formula did you use to get there?

anonymous · Answer

I have read thru this chapter twice and I must be missing something, I cannot figure out how to build a formula for this...

anonymous · Answer

$$Fd =Fd$$

anonymous · Answer

treat it as a lever problem and ignore the leg farthest from the person

anonymous · Answer

so r\R = Fd\gravity?

anonymous · Answer

can also be written as $$m _{1}d _{1}=m _{2}d _{2}$$
because gravity is constant to both side. Calculate the mass per length of the table, and find the amount of weight for one side of the leg and then multiply it by the length, which is 1.7m. The divide the product by the mass of the guy to get the length from the table.