First class lever
Fulcrum in the middle
Work at mechanical advantage
Second class lever
Load in the middle
Works at mechanical advantage
Third class lever
Effort in the middle
Works at mechanical disadvantage
First class lever example
Tricep dip or nodding your head
Second class lever examples
Cakf raises or using a wheelbarrow
Third class lever examples
Tricep dip or nodding your head
Mechanical advantage
Input < output
Mechanical disadvantage
Input > output