1.

The displacement of a particle which moves along a straight line is given by S = 4 t 3 + 3 t 2 - 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

A. sec
B. 1 sec
C. 1.5 sec
D. 1.5 sec.
Answer» C. 1.5 sec


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