Question

You use a pulley system to lift a boat out of the water. You apply a force of 130 N and the pulley pulls on the boat with a force of 650 N. What is the mechanical advantage of the pulley?

A. 3
B. 0.2
C. 1.2
D. 5

Answer 1

D.5

Step-by-step explanation:

Same reason as the guy above

Answer 2

D. 5

Step-by-step explanation:

The mechanical advantage of the pulley is given by:

`MA=(F_(out))/(F_(in))`

where

`F_(out) = 650 N` is the output force exerted by the system

`F_(in)=130 N` is the input force applied to the pulley system

Substituting the numbers into the equation, we find the mechanical advantage:

`MA=(650 N)/(130 N)=5`