Why Is It More Difficult to Perform a Sit-Up When

question 8

Multiple Choice

Why is it more difficult to perform a sit-up when the hands are clasped behind the head then when the arms are kept at the side?

• A) the resistance arm is greater
• B) the resistance arm is smaller
• C) the torque of the resistance is reduced
• D) the torque produced by the abdominals is reduced

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Definitions:

Elasticity

A measure of how much the demand or supply of a product changes in response to a change in price or other economic variables.

Resource Demand

The desire and ability of producers to acquire resources or inputs necessary for production.

Production Substitute

An alternative product or process that can be used in place of another in production, often to save costs or improve efficiency.

MR = MC

A principle in economics stating that profit maximization occurs when a firm's marginal revenue (MR) equals its marginal cost (MC) of production.