A balanced lever has two weights on it, the first with mass #42 kg # and the second with mass #14 kg#. If the first weight is # 2 m# from the fulcrum, how far is the second weight from the fulcrum?
Did you know you can treat units of measurement the same way as numbers? I have shown this in my solution.
For the system to be in equilibrium (not rotating or moving in any way) all the 'moments' have to cancel each other out.
Equating LHS to RHS for equilibrium gives:
Remember that the units for
Divide both sides by