Multiple Choice
The position of the center of mass of a system of particles moves as x = 4.5 t + 2.4 t2 + 1.1 t3, where x is in meters.If the system starts from rest at t = 0, what is its velocity at t = 3.0 s?
A) 8.0 m/s
B) 21 m/s
C) 49 m/s
D) 64 m/s
E) 65 m/s
Correct Answer:
Verified
Correct Answer:
Verified
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