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The motion of a moving car is given bythe equation a =t³ + 3t² + 5 where 'a' is the acceleration in m/sec and t is the time in seconds. The velocity of the car after 2 seconds will be:

A4 m/sec

B8 m/sec

C2 m/sec

D22 m/sec

Answer:

D. 22 m/sec


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