The Simple Harmonic Motion of an Object Is Described by the Graph

question 48

Multiple Choice

The simple harmonic motion of an object is described by the graph shown in the figure.What is the equation for the position x(t) of the object as a function of time t?

• A) x(t) = (4.0 m)sin[(2π/8.0 s)t + π/3.0]
• B) x(t) = (4.0 m)cos[(2π/8.0 s)t + 2π/3.0]
• C) x(t) = (4.0 m)cos[(2π/8.0 s)t + π/3.0]
• D) x(t) = (4.0 m)cos[(2π/8.0 s)t - π/3.0]
• E) x(t) = (8.0 m)cos[(2π/8.0 s)t + π/3.0]

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Definitions:

Palpating

The act of examining a part of the body by touch, especially for medical purposes, to detect conditions or characteristics.

Scanning

The act of examining something closely, often using a machine or electronic device to detect a specific feature or to gather information.

Apex

The point, tip, or summit of anything; in reference to the heart, the point of maximum impulse of the heart against the chest wall.

Body Mass Index (BMI)

A measure of body fat based on height and weight that applies to adult men and women, used to categorize underweight, healthy weight, overweight, and obese.