What does “Relative velocity” actually mean in Kinematics, and why does it matter for JEE?
the velocity of A as seen from B equals vector v(A) − v(B).
In simple words: the velocity of A as seen from B equals vector v(A) − v(B). Getting Relative velocity clear matters because JEE questions on Kinematics usually test this idea directly, not just a formula you memorised.
Key point
Relative velocity
Common mistake
adding speeds as plain numbers instead of subtracting vectors.
Memory tip
for opposite directions the relative speed adds; for the same direction it subtracts.
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