A pulley with a mechanical advantage of 5 is used to lift a bucket weighing 285 N. How much force must be used to lift the bucket?

1 Answer
Oct 2, 2015

57N

Explanation:

"Mechanical Advantage" = "output force"/"input force"
Here, Output Force is the weight of the bucket, 285N, and Input Force is the force needed to lift it.

=> "Input Force" = "output force"/"mechanical advantage"
=285/5
=57 N