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