Asked by harshitalohia | 26th Dec, 2009, 12:28: PM
Because in the second part you are calculating the distance as,
d = Vt,
And it's only valid for uniform velocity, but in this example we have uniform acceleration and not uniform velocity.
s = ut+at2/2
v2-u2 = 2as
are the only two equation to be used while calculating displacement or straight line distance, if we have uniformly accelerated motion.
Answered by | 26th Dec, 2009, 12:33: PM
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