The Acceleration of the Center of Mass of a System

question 30

Multiple Choice

The acceleration of the center of mass of a system of particles changes as a = 4.5t + 2.4t² + 1.1t³, where a is in m/s².If the system starts from rest at t = 0, what is its velocity at t = 2.0 s?

• A)8.0 m/s
• B)14 m/s
• C)20 m/s
• D)27 m/s
• E)34 m/s

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Definitions:

Total Entropy

In thermodynamics, it refers to the measure of the total amount of disorder or randomness in a system, often relating to the system's energy dispersal and the direction of spontaneous processes.

Forward Reaction

A chemical reaction where reactants convert into products, typically described from the perspective of proceeding in the direction written in a chemical equation.

Reverse Reaction

A chemical reaction in which the products reform the original reactants, effectively reversing the forward reaction.

Total Bond Energy

The sum of all the energy required to break all the bonds of a molecule into its constituent atoms, reflecting the stability of the molecule.