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Which of the following four statements i...

Which of the following four statements is false

A

A body can have zero velocity and still be accelerated

B

A body can have a constant velocity and still have a varying speed

C

A body can have a constant speed and still have a varying velocity

D

The direction of the velocity of a body can change when its acceleration is constant

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The correct Answer is:
B
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ALLEN-MOTION IN A PALNE-EXERCISE-2
  1. A train covers the first half of the distance between two stations at ...

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  2. A particle is moing with a velocity of 10m//s towards east. After 10s ...

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  3. Which of the following four statements is false

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  4. One car moving on a staright road covers one-third of the distance wit...

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  5. Figure below shows the velocity-time graph of a one dimensional motion...

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  6. If a car at rest, accelerates uniformly to a speed of 144 km//h in 20s...

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  7. A body starts from rest, what is the ratio of the distance travelled b...

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  8. The intial velocity of a particle is u (at t=0) and the acceleration i...

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  9. If a body starts from rest and travels 120 cm in the 6 second then wha...

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  10. If a train travelling at 72 km/h is to be brought to rest in a distanc...

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  11. A car moving with a speed of 40 km//h can be stopped by applying the b...

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  12. If a body starts from rest and travels 120 cm in the 6 second then wha...

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  13. A car moving with a velocity of 10m/s can be stopped by the applicatio...

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  14. A body is dropped from a tower with zero velocity, reaches ground in 4...

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  15. The graph between the displacement x and time t for a particle moving ...

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  16. A body starts from rest and travels a distance x with uniform accelera...

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  17. The position vector of a particle is given by vecr=vecr(0) (1-at)t, wh...

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  18. In the Q. 122 what will be the velocity of the particle when it return...

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  19. In the Q.122 how much distance is covered by the particle in returning...

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  20. The deceleration exerienced by a moving motor blat, after its engine i...

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