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Assertion : An object may have varying s...

Assertion : An object may have varying speed without having varying velocity.
Reason : If the velocity is zero at an instant, the acceleration may not be zero at that instant.

A

If both assertion `&` Reason are True `&` the Reason is a corrrect explanation of the Asserion.

B

If both Assertion `&` Reason are True but Reason is not correct explanation of the Assertion.

C

If Assertion is Trie but the Reason is False.

D

If both Assertion `&` Reason are false

Text Solution

Verified by Experts

The correct Answer is:
D
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ALLEN -MOTION IN A PALNE-EXERCISE-3
  1. Assertion: When a particle moves with constant velocity its average ve...

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  2. Assertion: The average velocity of a particle is zero in a time interv...

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  3. Assertion : An object may have varying speed without having varying ve...

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  4. Assertion: Average speed of a particle in a given time interval is nev...

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  5. Assertion: In successive time intervals if the average velocities of a...

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  6. Statement-I : In a free fall, the initial velocity of a body may or ma...

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  7. Assertion: If a body is dropped from the top of a twoer of height h an...

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  8. Assertion: An observer is moving due east and wind appears him to blow...

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  9. Assertion: The distance and displacment both are equal when the partic...

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  10. Statement-I : Graph (1) represent one dimensional motion of a particle...

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  11. Assertion: In general |Displacement| le distance. Reason: The instan...

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  12. Assertion: In a free fall, the initially velocity of a boyd may or may...

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  13. Assertion: Distance is a actual length of the path but displacement is...

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  14. Assertion: Rest of a body is a relative term. Reason: Motion of a bo...

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  15. Assertion: If a body moves on a straight line, magnitude of its displa...

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  16. Assertion: Separation between two bodies moving in the same direction ...

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  17. Assertion: To cross the river in minimum time swimmer should swimming ...

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  18. Assertion: A body moving with constant acceleration always travels equ...

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  19. Assertion: A body,whatever its motion, is always at rest in a frame of...

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  20. Assertion : A body droped from a given height and another body project...

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