Question

5.
simple machine can help you do this? Why?
A single fixed pulley does not reduce the effort required to lift a load. How does it make our
work easier?
What is energy? Name the different types of energy
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Answer 1

Answer:

In a single fixed pulley, some effort is wasted in overcoming friction between the strings and the grooves of the pulley; so the effort needed is greater than the load and hence the mechanical advantage is less than the velocity ratio.