Define mechanical advantage of a lever.

Write down a relation expressing the mechanical advantage of a lever.

If the mechanical advantage of a lever is equal to 1, then the effort applied on it ______ the load.

Why is the mechanical advantage of a lever of the third class always less than one? Give one example of this class of lever.

What is the mechanical advantage of a lever if a load of 80 N is moved by an effort of 20 N?

If the mechanical advantage of a lever is 2.5, what will be the effort you need to apply to lift a load of 50 N?

Calculate the ideal mechanical advantage of a lever in which the effort arm is 60 cm and the load arm is 4 cm.

If the mechanical advantage of a lever is 2.5, what will be the effort you need to apply to lift a load of 50 N?

Define mechnical advantage in lever.