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

Answer:

#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#