A lever is 2 m long. The fulcrum is 0.5 m from the load. If you push down with 50 N on the long end, what force is applied to the load?
Answer
150 N
How to solve it
1
Long arm: 2 - 0.5 = 1.5 m
2
Short arm: 0.5 m
3
Mechanical advantage: 1.5 ÷ 0.5 = 3
4
Force on load: 50 × 3 = 150 N
Hints
Find length of each arm
Calculate mechanical advantage
Multiply your force by MA