A String Is Wrapped Tightly Around a Fixed Pulley That

question 49

Multiple Choice

A string is wrapped tightly around a fixed pulley that has a moment of inertia of 0.0352 kg and a radius of 12.5 cm. A mass of 423 g is attached to the free end of the string. With the string vertical and taut, the mass is released so it can descend under the influence of gravity. As the mass descends, the string unwinds and causes the pulley to rotate. What is the speed of the mass after it has fallen through 1.25 m?

• A) 2.00 m/s
• B) 2.28 m/s
• C) 1.97 m/s
• D) 3.94 m/s
• E) 4.95 m/s

Understand the role and functionality of muscle proteins such as titin in muscle contraction.

Describe the factors that affect the force generated during muscle contractions.

Recognize the effect of nervous system stimulation on muscle contraction and the concept of motor unit recruitment.

Comprehend the implications of certain diseases or conditions on muscular function.

---

Definitions:

Self-determination

A theory emphasizing the role of autonomy, competence, and relatedness in fostering intrinsic motivation and psychological growth.

Empowerment

The process of giving employees autonomy, resources, and capabilities to make decisions and contribute to organizational success.

Confidence

The feeling or belief that one can rely on someone or something; firm trust.

Company's Success

The achievement of key business objectives, often measured by financial performance, market share, or the fulfillment of the organization's mission and vision.