Objects A and B are at the origin. If object A moves to (6 ,-2 )(6,−2) and object B moves to (2 ,9 )(2,9) over 5 s5s, what is the relative velocity of object B from the perspective of object A? Assume that all units are denominated in meters.

1 Answer
ali ergin
Mar 3, 2016

v_(AB)=sqrt137/5 m/s " velocity of B from the perspective of A(green vector)."vAB=√1375ms velocity of B from the perspective of A(green vector).

Explanation:

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"distance between the point of A and B :"distance between the point of A and B :
Delta s=sqrt( 11²+4^2) " " Delta s=sqrt(121+16)" "Delta s=sqrt137 m
v_(AB)=sqrt137/5 m/s " velocity of B from the perspective of A(green vector)."
"the angle of perspective is shown in figure"(alpha)." " tan alpha=11/4

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