A 30-Kg Cart and a 2

question 56

Multiple Choice

A 3.0-kg cart and a 2.0-kg cart approach each other on a horizontal air track.They collide and stick together.After the collision their total kinetic energy is 40 J.The speed of their center of mass is:

• A)0 m/s
• B)2.8 m/s
• C)4.0 m/s
• D)5.2 m/s
• E)8.0 m/s

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Definitions:

Histogram

A graphical representation of the distribution of numerical data through bars of different heights, which illustrate the frequencies of data within specified intervals.

Class Size

Refers to the number of students enrolled in a particular class or course, often considered in educational discussions regarding learning outcomes.

Histogram

A type of bar chart that represents the distribution of numerical data by showing the frequency of data intervals.

Classes

Categories or groups into which data or objects are organized based on shared characteristics or attributes.