Calculate Distance from Right End When Plank Tips

[Mcdeltateta]

1. Given a wooden plank mass 7 kg total length 4m supported by 2 sawhorses which are located l1=0.45m from left end and l2=1.5m from right end ...a cat with mass 3.9kg jumps on left end of plank and walks along to right side . How far is it from the right when plank begins to tip ?

Homework Equations

The Attempt at a Solution

 

[PhanthomJay]

1. Given a wooden plank mass 7 kg total length 4m supported by 2 sawhorses which are located l1=0.45m from left end and l2=1.5m from right end ...a cat with mass 3.9kg jumps on left end of plank and walks along to right side . How far is it from the right when plank begins to tip ?

Homework Equations

The Attempt at a Solution

I don't see your attempt.