Solve the Puzzle: Find the Scale Readings for a Mass Distribution

[innman]

formula Help!

i got this question but i don;t know which formula to use

Q - A 1m plank of Mass 1.0kg is placed on two scales which are at either end of the plank. Masses are hung underneath the plank.

Mass A = 5.0kg at a distance of 0.30m from the left of the plank
Mass B = 5.0kg at a distance of 0.90m from the left of the plank

What do the scales read


Can sumone help me!? pleasez

 

[alias25]

this is a moments of force question...you should really have a go at these questions and post what you've come up with so far then we would know whether the advice we give you is useful or not.

 

[Iscariot]

Torque is essentially what you are dealing with, or the turning force. Force is calculated with F*d, or in your case, F*r because you're dealing with torque rather than force exactly.

This is the formula you most likely need to use to solve this problem.