Question

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?

Answer 1

`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`