A Wrench Is Used to Tighten a Nut as Shown

question 41

Multiple Choice

A wrench is used to tighten a nut as shown in the figure. A 12-N force is applied 7.0 cm from the axis of rotation. What is the magnitude of the torque due to the applied force?

• A)0.58 N . m
• B)0.84 N . m
• C)1.71 N . m
• D)14 N . m
• E)58 N . m

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Definitions:

Extension

The movement by which the angle between two adjoining parts of the body is increased; opposite of flexion.

Hyperesthesia

An increased sensitivity to stimulation, particularly touch.

Summation Effect

The process where combined effects of multiple stimuli result in a greater response than the sum of their individual effects.

Analgesia

The absence of pain in response to stimulation which would normally be painful, often achieved through the use of medication.