Question

when the pitch is zero the wrench reduces to ?​

Answer 1

Answer:

Single Force

Step-by-step explanation:

When the pitch is zero the wrench reduces to Single Force.

Consider

K - Couple

R - single force

Wrench is single force (R)  with couple K whose axis is in direction of force.

Ratio K/R is called as Pitch.

When the pitch is zero the wrench reduces to Single Force.

When the pitch is infinite, wrench becomes couple only.