Question:
the position of the object changes with respect to time as follows x=3t2 7 find its velocity at 3sec
Answer:
Position of object, x = 3t2 +7
velocity, v = dx/dt
=d(3t2 +7) /dt
= 6t +0 = 6t
Velocity at 3 sec-
6(3) = 18 m/sec
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