Advertisements
Advertisements
Question
In the diagram shown alongside a claw hammer, mark the fulcrum (F) and indicate the directions of load (L) and effort (E) with arrows. What class of lever is it? Give one more example of this class of lever.
Advertisements
Solution
Claw-hammer is the lever of the first order. One more example of this class of lever is a see-saw. In the following diagram, F indicates the position of the fulcrum. The arrows labelled L and E respectively indicate the directions of load and effort.
RELATED QUESTIONS
Draw a diagram of a lever which is always used as a force multiplier. How is the effort arm related to the load arm in such a lever?
Class II levers are designed to have ______.
Define Lever
The following belong to which class of lever?
A see-saw
The following belong to which class of lever?
A claw-hammer
When we want to use a machine as a force multiplier, which class of lever should we preferably use? Give a simple diagram of such a lever.
State the types (or kinds) of lever, and give two examples of each kind.
A crowbar of length 100 cm is used to lift a load of 5 kgf. It has its fulcrum at a distance of 20 cm from the load. Calculate:
(i) the mechanical advantage of a crowbar and,
(ii) the effort applied at the other end.
What is a first-order lever?
A lever is used to multiply the force.
