Objects A and B are at the origin. If object A moves to $(-7 ,-9 )$ and object B moves to $(1 ,-1 )$ over $8 s$ , what is the relative velocity of object B from the perspective of object A? Assume that all units are denominated in meters.

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Answer 1 · 2016-04-13T20:58:58

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$AB=sqrt((-8)^2+(8^2))$

$AB=sqrt(64+64)$

$AB=11,31 m$

$v=(11,31)/8$
$v=1,41 m/s$
$angle=45^o$

Objects A and B are at the origin. If object A moves to (-7 ,-9 )(-7 ,-9 ) and object B moves to (1 ,-1 )(1 ,-1 ) over 8 s8 s, what is the relative velocity of object B from the perspective of object A? Assume that all units are denominated in meters.