A moves with $65 \,km/h $ while $B$ is moving in same direction of $A$ with $80\, km/h$. The relative velocity of $B$ with respect to $A$ is......... $km/h$
A moves with $65 \,km/h $ while $B$ is moving in same direction of $A$ with $80\, km/h$. The relative velocity of $B$ with respect to $A$ is......... $km/h$
$80$
$60$
$15$
$145$
A moves with $65 \,km/h $ while $B$ is moving in same direction of $A$ with $80\, km/h$. The relative velocity of $B$ with respect to $A$ is......... $km/h$
${\vec v_B} + {\vec v_A} = 80 - 65 = 15\,km/hr$