The equation of motion of a particle moving on circular path (radius 200m) is given by s=18t+3t2−2t3 where s is the total distance covered from straight point in meters at the end of t seconds. The maximum speed of the particle will be:
A
15m/sec
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B
23m/sec
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C
19.5m/sec
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D
25m/sec
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Solution
The correct option is B19.5m/sec The equation of motion of a particle on the circular path is given by