The velocity of the center of mass of a system of particles changes as v = 4.5 t + 2.4 t² + 1.1 t³, where v is in meters per second.If the system starts from rest at t = 0, what is its acceleration at t = 3.0 s? A)7.1 m/s² B)14 m/s² C)20 m/s² D)49 m/s² E)65 m/s²

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The Answer of The velocity of the center of mass of a system of particles changes as v = 4.5 t + 2.4 t² + 1.1 t³, where v is in meters per second.If the system starts from rest at t = 0, what is its acceleration at t = 3.0 s? A)7.1 m/s² B)14 m/s² C)20 m/s² D)49 m/s² E)65 m/s²

The Velocity of the Center of Mass of a System