Objects A and B are at the origin. If object A moves to $(-8 ,7 )$ and object B moves to $(6 ,-2 )$ over $1 s$ , 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 · 2017-05-23T09:54:49

The relative velocity is $=14veci-9vecj$

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The absolute velocity of $A$ is

$vecv_A=1/<-8,7>=<-8,7>$

The absolute velocity of $B$ is

$vecv_B=1/1<6,-2> = <6,-2>$

The relative velocity of $B$ with respect to $A$ is

$vecv_(B//A)=vecv_B-vecv_A$

$= <6,-2 > - <-8,7>$

$=<14,-9> ms^-1$

Objects A and B are at the origin. If object A moves to (-8 ,7 )(-8 ,7 ) and object B moves to (6 ,-2 )(6 ,-2 ) over 1 s1 s, what is the relative velocity of object B from the perspective of object A? Assume that all units are denominated in meters.