Look at the diagrams at the
right. They show three first
class levers, each arranged
in a different way. For each,
answer the following
questions.
a. Is the input arm larger,
smaller, or the same as
the output arm?
b. Is the input force
larger, smaller, or the
same as the output
force?
c. Is the mechanical
advantage greater than,
less than, or equal to 1?