A 960-N Block Is Suspended as Shown

question 37

Multiple Choice

A 960-N block is suspended as shown. The beam AB is weightless and is hinged to the wall at A. The tension force of the cable BC has magnitude:

• A) 720 N
• B) 1200 N
• C) 1280 N
• D) 1600 N
• E) none of these

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Definitions:

External Oblique

A muscle located on the lateral part of the abdomen, part of the abdominal wall muscles, that aids in rotation and lateral flexion of the torso.

Internal Oblique

A muscle in the abdominal wall that lies below the external oblique and just above the transverse abdominal muscles, functioning to rotate and turn the trunk.

Lateral Leg Muscles

Muscles located on the outside part of the leg, involved in movement and stabilization of the leg.

Dorsiflexion

The action of lifting the foot upwards towards the shin.