# Applied to the handle of the screwdriver 1

A twist of 4 N•m is applied to the handle of the screwdriver. Resolve this couple moment into a pair of couple forces F exerted on the handle and P exerted on the blade.

Image from: Hibbeler, R. C., S. C. Fan, Kai Beng. Yap, and Peter Schiavone. Statics: Mechanics for Engineers. Singapore: Pearson, 2013.

#### Solution:

Let us first look at the blade of the screwdriver. We can resolve the couple moment acted upon the handle into two force at the blade as follows:

$(P)(0.005)=4$

$P=800$ N

Doing the same at the handle gives us:

$(F)(0.03)=4$

$F=133.3$ N

$P=800$ N
$F=133.3$ N