# Objects A and B are at the origin. If object A moves to #(5 ,-1 )# and object B moves to #(-8 ,1 )# 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.

##### 1 Answer

Apr 26, 2016

#### Answer:

Treating the positive X-axis as North,

#### Explanation:

The distance between points A and B has increased from

for an average speed of

Relative to A, B has moved

If

(Remember that velocity must always include a direction as well as a speed).