Question

F. Solve the following numerical problems.
1. If the fulcrum of a crowbar, of total length 150 cm, is at a distance of 25 cm from the load, what is
the mechanical advantage of the crowbar?
2. The handle of a nutcracker is 18 cm long and a nut is placed 2 cm from its hinge. If a force of
36 kgf is placed on the nut, it will crack. Calculate the force which has to be applied at the end of
the handle to crack the nut.
3. A crowbar of length 100 cm is used to lift a load of 50 N. The fulcrum is at a distance of 20 cm
from the load. Calculate a. the mechanical advantage of the crowbar b. the effort applied at the
other end.
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Answer 1

Answer of question 1st.