A single fixed pulley has an IMA (Ideal Mechanical Advantage) equal to "1". What
is the purpose of using a simple machine
with an IMA equal to 1?
20 cm
20 cm
A It changes the direction of the effort
force,
B It decreases the amount of effort force
required to do the work.
C It decreases the length through which
the effort force must be applied.
D There is no benefit in using a machine
with an IMA of 1.