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Question

The displacement of a particle which moves along a straight line is given by S = 4t3 + 3t2 - 10 where S is in meters and t is in seconds. The time taken by the particle to acquire a velocity of 18 m/sec from rest, is



Options:
A .  `frac(1)(2)` sec.
B .  1 sec
C .  1.5 sec
D .  2 sec.
Answer: Option B



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