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Question
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 vis 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
Answer
This answer is hidden. It contains 1 characters.
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