A wrench with a length of #54 cm# is being used to unscrew a #6 cm# bolt. If a torque of #90 Nm# is needed to overcome the friction keeping the bolt in place, what is the minimum torque that must be applied to the wrench to unscrew the bolt?

1 Answer
Jan 7, 2018

Answer:

'What is the minimum force that must be applied'

#16 2/3" Newtons"#

Explanation:

Did you know that you can and may treat units of measurement in the same way you do the numbers

Known: #54cm = 0.54m#

Let the unknown applied force be #x# Newtons

#0.54 m xx xN=90 Nm#

Divide both sides by #0.54 m#

#(0.54m)/(0.54m)xx xN=(90xxNxxcancel(m))/(0.54xxcancel(m))#

#color(white)("dd")1color(white)("ddd")xx xN=16 2/3N#