Question

Write the expression for relative velocity of one moving with respect to another body when objects are moving in same direction and are moving in opposite directions?

CLASS - XI PHYSICS (Kinematics)

Answer 1

so when Bodies are moving in same direction then

$V_{AB}=V_{A}-V_B$ (Relative velocity of a with respect to b)

When bodies are moving in opposite direction

 ⇒$V_{AB}=V_{A}-(-V_{B})$

⇒$V_{AB}=V_{A}+V_{B}$