Question

if thee is no mechanical advantage in using a single fixed penny why use it then

Answer 1

Answer:

Amoeba (plural = amoebae) is a well known genus of unicellular organism, a protist. ... It is a genus of protozoa that moves with false feet, called pseudopodia. The amoeba is a member of a whole group of amoeboid eukaryotic protists called Amoebozoa. They are heterotrophs, eating bacteria and other protists.

Answer 2

Answer:

i) Single fixed pulley is the type of single pulley which is very often used as a machine even though it does not give any gain in mechanical advantage.

(ii) Single fixed pulley is used only to change the direction of the force applied.