Question

the X co-ordinate of a particle moving along x-axis varies as X =(5t^2 - 10t+ 28)where X is in metre and T is in seconds. The displacement of the particle in first 2 seconds is
a.-2
b.28
c.2
d.zero
I KNOW ITS ANSWER IS ZERO BUT HOW???
GIVE YOUR ANSWER AS SOON AS POSSIBLE.
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Answer 1

Answer:(d) zero

Explanation: