Objects A and B are at the origin. If object A moves to (8 ,5 ) and object B moves to (9 ,-2 ) 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
Apr 10, 2016

"the velocity of B from perspective of A : "3,54" m/s"
"angle have shown as the gold color :"278,13^o

Explanation:

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"displacement of B from perspective of A is:"
AB=sqrt((9-8)^2+(-2-5)^2)
AB=sqrt(1^2+(-7)^2)
AB=sqrt(1+49)
AB=sqrt50
AB=7,07 " m"

v=bar(AB)/(time)

v=(7,07)/2

v=3,54 " m/s"