A Uniform 2

question 44

Multiple Choice

A uniform 2.00-kg circular disk of radius 20.0 cm is rotating clockwise about an axis through its center with an angular speed 30.0 revolutions per second. A second uniform 1.50-kg circular disk of radius 15.0 cm that is not rotating is dropped onto the first disk so that the axis of rotation of the first disk passes through the center of the second disk. What is the final angular speed of the two disks when they are rotating together?

• A)16.9 revolutions per second
• B)19.2 revolutions per second
• C)21.1 revolutions per second
• D)17.1 revolutions per second
• E)12.7 revolutions per second

---

Definitions:

Trialability

The extent to which a new product or service can be experimented with on a limited basis before making a purchase decision.

Product Life Cycle

The progression of a product through different stages from introduction to growth, maturity, and eventual decline in the market.

Fad Products

Items that become extremely popular in a short period of time but lose their appeal just as quickly.

Competitive Advantage

A favorable position a business holds over its competitors, often achieved by offering superior quality, lower costs, or unique features.