First class
Spanner is not a class 2 lever. A class 2 lever has the load between the fulcrum and the effort, like a wheelbarrow. A spanner is a type of hand tool used to provide grip and mechanical advantage in turning objects such as nuts and bolts.
A spanner is a type of lever, specifically a class 1 lever. It helps to multiply the force applied in turning objects like nuts and bolts by increasing the length of the lever arm.
A spanner is considered a second-class lever because the load (the nut or bolt being turned) is located between the effort (the force applied by the user) and the fulcrum (the pivot point where the spanner contacts the nut). In this configuration, the user applies force at one end of the spanner, while the load is at the other end, allowing the effort to lift the load more effectively. This arrangement provides mechanical advantage, making it easier to turn tight fasteners.
Yes, a trolley is considered a second class lever. A hammer is considered a third class lever. Also, a clothes pin is considered a third class lever.
lever,wedge
A first-class lever consists of a fulcrum placed between the effort force and the resistance force. Examples of machines that utilize first-class levers include seesaws, crowbars, and scissors.
First class lever.Fulcrum is between load and force.Sources: http://en.wikipedia.org/wiki/Lever#First-class_levers
A spanner is a type of lever, more specifically a wrench, used for tightening and loosening nuts and bolts.
3rd class lever
Class 1 lever
1st class lever3rd class lever
The Class Lever for Pliers is a class 2 lever.