CBSE Class 11-science Answered

The position of an object depends on time according to the relation X = 4 + 2t - (t^2) , where t in sec gives X in metres . Find the distance covered by the object from t=0 to t=2.

Asked by arunavamitra50 | 13 Jun, 2018, 09:09: PM

Expert Answer

The displacement x(t) = 4 + 2×t - t²

Table given below shows the position and displacement fro t=0 to t=2

t x(t) displacement

in 1 s

----------------------------------

0 4 ------

1 5 1

2 4 -1

---------------------------------

distance covered 2 units

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