Relative Velocity and Meeting of Particles – Rankers Physics
Topic: Kinematics
Subtopic: Relative Motion in One Dimension

Relative Velocity and Meeting of Particles

In the following question, a statement of Assertion (A) is followed by a statement of Reason (R).
Assertion (A): If two particles, moving along straight line with constant velocities have to meet, the relative velocity must be along the line joining the two particles.
Reason (R): Relative motion means motion of one particle as viewed from the other particle.
 
Both (A) & (R) are true and the (R) is the correct explanation of the (A)
Both (A) & (R) are true and the (R) is not the correct explanation of the (A)
(A) is true statement but (R) is false
Both (A) & (R) are false statements

Solution:

For two particles to meet, the relative velocity vector must align with the line joining them so that from one's frame, the other moves directly towards it.

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