A balanced lever has two weights on it, the first with mass #7 kg # and the second with mass #4 kg#. If the first weight is # 3 m# from the fulcrum, how far is the second weight from the fulcrum?
1 Answer
Feb 3, 2016
Weight 2 is
Explanation:
Moment = Force * Distance
A) Weight 1 has a moment of
Weight 2 must also have a moment of
B)
Strictly speaking the kg should be converted to Newtons in both A and B because Moments are measured in Newton Metres but the gravitational constants will cancel out in B so they were left out for simplicity's sake
