A wrench with a length of 54 cm54cm is being used to unscrew a 6 cm6cm bolt. If a torque of 90 Nm90Nm 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

'What is the minimum force that must be applied'

16 2/3" Newtons"1623 Newtons

Explanation:

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

Known: 54cm = 0.54m54cm=0.54m

Let the unknown applied force be xx Newtons

0.54 m xx xN=90 Nm0.54m×xN=90Nm

Divide both sides by 0.54 m0.54m

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

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