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NEETPhysicsMotion in One Dimension

Assertion : If a particle is thrown upwards, then distance travelled in last second of upward journey is independent of the velocity of projection. Reason : In last second, distance travelled is 4.9 m. (Take ( .g=9.8 ~m / s ^2 ) )

Options

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

Correct answer

A. If both Assertion and Reason are correct and Reason is the correct explanation of Assertion

Step-by-step solution

Assertion is false: The distance covered by a body thrown vertically upwards in the last second of its upward journey is independent of its initial speed. This is false. The distance covered in the last second depends on the speed at which it passes through that second. For example, if it's thrown very fast, it might cover more distance in the last second before reaching its peak than if thrown slowly. More accurately, the distance covered in the first second of free fall (or the last second of upward motion assumi

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