A pulley is used to lift a heavy mass from the floor to a platform. The IMA of the system is 5 and the AMA is 2.5. What is the efficiency of the system?

Respuesta :

efficiency = 2.5 / 5 = 0.50 = 50%

Answer:

The efficiency of the system is 50 %.

Explanation:

Given that,

IMA of the system = 5

AMA of the system = 2.5

The formula of efficiency of the system is defined as:

[tex]\eta = \dfrac{AMA}{IMA}\times100[/tex]

Where, IMA = Ideal mechanical advantage

Ideal mechanical advantage is equal to the effort distance divided by the resistance distance.

AMA = Actual mechanical advantage

Actual mechanical advantage is equal to the resistance force divided by the effort force.

[tex]\eta = \dfrac{2.5}{5}\times100[/tex]

[tex]\eta = 50\%[/tex]

Hence, The efficiency of the system is 50 %.