In the Figure, the Horizontal Lower Arm Has a Mass

question 6

Multiple Choice

In the figure, the horizontal lower arm has a mass of 2.8 kg and its center of gravity is 12 cm from the elbow joint pivot. How much force FM must the vertical extensor muscle in the upper arm exert on the lower arm to hold a 7.5 kg shot put?

• A) 100 N
• B) 500 N
• C) 750 N
• D) 1000 N
• E) 1500 N

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Definitions:

Covert Negative

Internal, negative thoughts or beliefs that are not openly expressed but influence feelings and behaviors.

Stimulus Control

The modification of behavior by manipulating the factors that trigger or discourage it.

Antecedent

An event, condition, or cause that precedes and potentially triggers an effect or outcome.

Emitted

Released or given off, often used in the context of substances, light, sounds, or signals.