1. Tardigrade
  2. Question
  3. Physics
  4. Assertion When the objects A and B move in the same direction, then relative velocity of object A w.r.t. object B is vA B=vA-vB Reason When the objects A and B move in opposite direction, then relative velocity of object B w.r.t. object A is vB A=vB-vA.

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Q. Assertion When the objects $A$ and $B$ move in the same direction, then relative velocity of object $A$ w.r.t. object $B$ is $v_{A B}=v_{A}-v_{B}$
Reason When the objects $A$ and $B$ move in opposite direction, then relative velocity of object $B$ w.r.t. object $A$ is $v_{B A}=v_{B}-v_{A}$.

Motion in a Straight Line

Solution:

Statements II and III are correct but I is incorrect and it can be corrected as,
Even, when we are sleeping, air and blood flow are treated as objects which are in motion w.r.t. the body. Also, while sleeping human beings are in rest, not in motion.