The Drum Shown in the Figure Has a Radius of 0.40

question 46

Multiple Choice

The drum shown in the figure has a radius of 0.40 m and a moment of inertia of 2.3 $\mathrm { kg } \cdot \mathrm { m } ^ { 2 }$ about an axis perpendicular to it through its center. The frictional torque at the drum axle is 3.0 N ? m. A 14-m length of rope is wound around the rim. The drum is initially at rest. A constant force is applied to the free end of the rope until the rope is completely unwound and slips off. At that instant, the angular speed of the drum is $23 \mathrm { rad } / \mathrm { s }$ The drum then slows down at a constant rate and comes to a halt. In this situation, what was the magnitude of the constant force applied to the rope?

• A) 51 N
• B) 40 N
• C) 29 N
• D) 18 N
• E) 7.5 N

---

Definitions:

Direct Approach

A communication style that involves stating the main point or objective at the beginning, often used in clear and straightforward situations.

Indirect Approach

A communication strategy that involves presenting information in a less straightforward manner, often used to soften the delivery of sensitive or complex messages.

Businesspeople

Individuals engaged in commercial, industrial, or professional activities, aiming to achieve economic or organizational goals.

Direct Approach

A communication strategy that involves straightforwardly presenting the main point or purpose at the beginning.