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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