Objects A and B are at the origin. If object A moves to #(-7 ,2 )# and object B moves to #(-5 ,-6 )# over #2 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
Mar 4, 2016

Answer:

#v_(AB)=sqrt68/2 " "m/s"( the green vector)"#
#" you can calculate "alpha " using figure" #

Explanation:

enter image source here
#"displacement between the point A and B :"#
#vec(AB)=sqrt (8^2+2^2)=sqrt68" "m#
#v_(AB)=sqrt68/2 " "m/s"( the green vector)"#
#" you can calculate "alpha " using figure" #