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AIIMS2004PhysicsLaws of Motion

Assertion : The driver in a vehicle moving with a constant speed on a straight road is in a noninertial frame of reference. Reason : A reference frame in which Newton's laws of motion are applicable is non-inertial.

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

C. If assertion is true but reason is false

Step-by-step solution

If one takes two frames with origin O₁ and O₂ and if a body P is at rest, both according to O₁ as well as O₂ . The body is at rest. If the frame is moving with a constant velocity, the same observation will not be made. Therefore a frame moving with a constant velocity cannot be taken as an inertial frame. Assertion is right. But the reason given is wrong because the frame on which Newton's laws of motion are applicable is an inertial frame.

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