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AIIMS2014PhysicsMotion in One Dimension

Assertion: The relative velocity between any two bodies moving in opposite direction is equal to sum of the velocities of two bodies. Reason: Sometimes relative velocity between two bodies is equal to difference in velocities of the two bodies.

Options

  1. AIf both assertion and reason are true and reason is the correct explanation of assertion.
  2. BIf both assertion and reason are true but reason is not the correct explanation of assertion.
  3. CIf assertion is true but reason is false.
  4. DIf both assertion and reason are false.

Correct answer

B. If both assertion and reason are true but reason is not the correct explanation of assertion.

Step-by-step solution

When two bodies are moving in opposite directions, relative velocity between them is equal to sum of the velocity of bodies. But if the bodies are moving in same direction their relative velocity is equal to difference in velocity of the bodies.

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