Phil's Levers, planes and axis
Lever 1 F
Lever 3 E
Lever 2 L
Fulcrum Effort Load
Fulcrum Load Effort
Effort Fulcrum Load
Mechanical advantage is being able to carry heavy weights
low Mechanical advantage but have high movement speed
This is due to the load being closer to the fulcrum
This is due to the effort being closer to the fulcrum
High mechanical advantage
This class lever length from effort to fulcrum could be adjusted to be longer to be mechanically advantaged.
Used for heading the ball in football
When jumping in long jump, your toe acts as a fulcrum, your gastrocnemius acts as the effort and the weight of the body acts as the load.
Upper cut in boxing
They use this because boxers have a small time where their opponent opens up their weak sport so boxers uses the elbow which is a third class lever to punch really fast, the speed makes up for the lost of strength.
They use this because the first class lever has a big rage of movement and the head benefits from this as they dont need the strength or speed but to look around.
They use this because in long jump you need to generate a lot of force to push the body against your weight and gravity, this how ever loses the benefit of speed but they cover that with a starting run up.
Planes
Axis
Front plane
Sagittal plane
Transverse plane
Vertical axis
Sagittal axis
Transverse axis
