A 30-Kg Child Sitting 5

question 36

Multiple Choice

A 30-kg child sitting 5.0 m from the center of a merry-go-round has a constant speed of 5.0 m/s. While she remains seated in the same spot and travels in a circle, the work the seat performs on her in one complete rotation is

• A) 0 J.
• B) 150 J.
• C) 1 500 J.
• D) 4 700 J.
• E) 46 000 J.

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Definitions:

Polymorphism

Polymorphism is a concept in object-oriented programming that allows objects of different classes to be treated as objects of a common superclass, enabling a single interface to control the access to the specific method implementations.

Late Binding

A programming mechanism where method calls are resolved at runtime rather than compile time.

Method Definition

The part of a class where the behavior of a method is specified, including its return type, parameters, and body.

Method Invocation

The process of calling or executing a method in a program, which may involve passing arguments and receiving a return value.