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A particle starts from point A, moves al...

A particle starts from point A, moves along a straight line path with an acceleration given by `a=2(4-x)` where x is distance from point A. The particle stops at point B for a moment. Find the distance AB(in m). (All values are in S.I. Units)

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The correct Answer is:
8

`a=0 rArr ` mean
`0=2(4-x) rArr x_("mean")=4`
`rArr A=4m`
`rArr x_(max)=8`
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