Objects A and B are at the origin. If object A moves to $(3 ,-4 )$ and object B moves to $(2 ,7 )$ 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.

Question

1574 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2017-04-23T06:10:38

The relative velocity is $=<-1/8,11/8>$

enter image source here

The absolute velocity of $A$ is

$vecv_A=1/8<3,-4>=<3/8,-4/8>$

The absolute velocity of $B$ is

$vecv_B=1/8<2,7>=<2/8,7/8>$

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

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

$=<2/8,7/8> - <3/8,-4/8>$

$=<-1/8,11/8>$

Objects A and B are at the origin. If object A moves to (3 ,-4 )(3 ,-4 ) and object B moves to (2 ,7 )(2 ,7 ) 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.