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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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