A Heavy Box Is at Rest on an Inclined Plane

question 45

Multiple Choice

A heavy box is at rest on an inclined plane. The box begins to slide down the inclined plane when a small force is applied to the box. The force is removed as soon as the box begins to slide. The speed of the box increases as the box slides down the inclined plane.Which of the following is the most likely cause of this increasing speed?

• A)The force of gravity on the box is less when the box is not moving than when the box is moving.
• B)The force of gravity on the box is greater when the box is not moving than when the box is moving.
• C)The force of friction on the box is less when the box is not moving than when the box is moving.
• D)The force of friction on the box is greater when the box is not moving than when the box is moving.

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Definitions:

Starting Point

The initial position, condition, or phase from which a process, project, or calculation begins.

Static Method

A method in programming that belongs to the class rather than any object of the class and can be called without creating an instance of the class.

Forecasting

The process of making predictions based on past and present data and analysis of trends, often used in planning inventory, sales, and other business operations.

Systematic Component

The part of a model or data that can be directly attributed to identifiable, potentially predictable, factors rather than random variation.