Objects A and B are at the origin. If object A moves to $(-3 ,1 )$ and object B moves to $(-6 ,8 )$ 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.

Question

1730 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2017-04-15T05:45:36

The relative velocity of $B$ wrt $A$ is $=<-1,3/3>$

enter image source here

The absolute velocity of $A$ is

$vecv_A=1/3<-3,1>=<-1,1/3>$

The absolute velocity of $B$ is

$vecv_B=1/3<-6,8>=<-2,8/3>$

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

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

$=<-2,8/3> - <-1,1/3>$

$=<-1,3/3>$

Objects A and B are at the origin. If object A moves to (-3 ,1 )(-3 ,1 ) and object B moves to (-6 ,8 )(-6 ,8 ) 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.