Objects A and B are at the origin. If object A moves to $(-6 ,-3 )$ and object B moves to $(-5 ,-4 )$ over $3 s$ , 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 · 2018-03-15T14:36:56

The relative velocity is $=<1/3, -1/3>ms^-1$

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The absolute velocity of $A$ is

$v_A=1/3<-6,-3> = <-2,-1>$

The absolute velocity of $B$ is

$v_B=1/3<-5,-4> = <-5/3,-4/3>$

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

$v_(B//A)=v_B-v_A= <-5/3,-4/3> - <-2,-1>$

$=<-5/3+2, -4/3+1>$

$=<1/3, -1/3>ms^-1$

Objects A and B are at the origin. If object A moves to (-6 ,-3 )(-6 ,-3 ) and object B moves to (-5 ,-4 )(-5 ,-4 ) over 3 s3 s, what is the relative velocity of object B from the perspective of object A? Assume that all units are denominated in meters.