A 50-M Radius Playground Merry-Go-Round with a Moment of Inertia of of 2000

question 11

Multiple Choice

A 5.0-m radius playground merry-go-round with a moment of inertia of 2000 kg • m² is rotating freely with an angular speed of 1.0 rad/s.Two people,each having a mass of 60 kg,are standing right outside the edge of the merry-go-round and step on it with negligible speed.What is the angular speed of the merry-go-round right after the two people have stepped on?

• A) 0.20 rad/s
• B) 0.40 rad/s
• C) 0.60 rad/s
• D) 0.80 rad/s
• E) 0.67 rad/s

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Definitions:

Traditional Costing

A costing methodology that assigns overhead costs to products based on a predetermined rate, often using direct labor hours as the allocation base.

Activity-Based Costing

Activity-Based Costing is a method of allocating overhead to specific products or services based on the activities that contribute to overhead costs.

Overhead Cost

The ongoing, general business expenses not directly tied to producing goods or services but necessary for running the business.

Traditional Costing

A costing method that assigns factory overhead to products based on volume-related measures such as direct labor hours or machine hours.