Objects A and B are at the origin. If object A moves to $(3 ,-5 )$ and object B moves to $(2 ,9 )$ over $5 s$ , 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 · 2016-04-25T12:59:57

$v_A=2,81 m/s$

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$"displacement for B from the perspective of A:"$

$"displacement="sqrt((3-2)^2+(-5-9)^2)$

$"displacement="sqrt(1^2+14^2)$

$"displacement="sqrt(197)$

$"displacement="14,04m$

$v_A="displacement"/t$

$v_A=(14,04)/5$
$v_A=2,81 m/s$

Objects A and B are at the origin. If object A moves to (3 ,-5 )(3 ,-5 ) and object B moves to (2 ,9 )(2 ,9 ) over 5 s5 s, what is the relative velocity of object B from the perspective of object A? Assume that all units are denominated in meters.