Assuming you mean 'fourth class lever' as in respect to a sports injury, then no such thing exists according to 'The American College of Sports Medicine'.
class 3
THREE CLASSES OF LEVER There are three classes of lever and each class has fulcrum, load and effort which together can move a heavy weight. CLASS 1 The workman uses a trolley to move the large packing case. The fulcrum is the wheel. CLASS 2The gardener uses a wheel barrow to lift tools and garden waste. The load is in the centre of the barrow CLASS 3 The fisherman catches the fish which becomes the load at the end of the lever.
A Class 2 lever has the load in-between the effort and the fulcrum. An example is a wheelbarrow, Effort is at the handles, the wheel is the fulcrum, and load is the weight carried on the wheelbarrow.
second class lever
It is a Class 1 Lever because they are like big scissors
2nd class lever
No. It's an example of a Second Class lever.
A wheelbarrow is a second-class lever. In a second-class lever, the load is between the effort (force) and the fulcrum, which allows for a mechanical advantage in lifting and moving heavy loads with less effort.
No, a screwdriver is an example of a first-class lever where the fulcrum is in the middle. In a third-class lever, the effort is between the fulcrum and the load.
Answer #1:It is a third class lever.=====================Answer #2:It is a second class lever.
No, a screwdriver is an example of a first-class lever, not a third-class lever. In a first-class lever, the fulcrum is located in between the effort force and the load. A third-class lever has the effort force placed between the fulcrum and the load.
it is a 1st-class lever
The biceps is an example of a class 3 lever. The triceps is an example of a class 1 lever.
A staple is an example of a class one lever where the fulcrum is between the load and the effort.
A fourth-class lever is a type of lever where the input force is between the fulcrum and the output force. In this arrangement, the load arm is longer than the effort arm, resulting in an increase in speed but a decrease in force. Fourth-class levers are not very common in everyday situations but can be found in certain biological systems, such as in the human body.
A cane
There are three types of lever, with examples as follows: A seesaw (teetertotter) is a Class 1 lever A wheel barrow is a Class 2 lever A pair of scissors is a Class 3 lever