Question

Suppose that with a pulley system you need to exert a force of 1,400N to lift a heavy object. But without the pulley system, you need to exert 4,200N to lift the object. What is the MA of the pulley system?

Answer 1

Mechanical Advantage is 0.3

Step-by-step explanation:

Step one:

given data

Load L= 1400N

Effort E= 4200N

Required

The mechanical advantage of the pulley system

Step two:

We know that the expression for the mechanical advantage is

MA= Load/Effort

MA= 1400/4200

MA=0.3