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Velocity-time graph for a car is semicir...

Velocity-time graph for a car is semicircle as shown here. Which of the following is correct:

A

Car must move in circular path

B

Acceleration of car is never zero

C

Mean speed of the particle is /4 m/s

D

The car makes a turn once during its motion

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The correct Answer is:
C
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MOTION-KINEMATICS-EXERCISE 2 OBJECTIVE PROBLEMS
  1. The figure shows a velocity-time graph of a particle moving along a st...

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  2. The figure shows a velocity-time graph of a particle moving along a st...

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  3. Velocity-time graph for a car is semicircle as shown here. Which of th...

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  4. Shown in the figure are the velocity time graphs of the two particles ...

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  5. The co-ordinates of a moving particles at a time t, are give by, x = 5...

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  6. A body moves with velocity v = lnx m/s where x is its position. The ne...

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  7. A body of mass 1 kg is acted upon by a force vecF=2sin3pithati+3cos3pi...

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  8. A force F = Be^(Ct) acts on a particle whose mass is m and whose veloc...

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  9. A particle starts moving rectilinearly at time t = 0 such that its vel...

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  10. If a point moves in a straigth line in such a manner that its retardat...

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  11. Initially car A is 10.5 m ahead of car B. Both start moving at time t ...

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  12. Statement-I : A particle moves in a straight line with constant accele...

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  13. Assertion: For a particle moving in a straight line velocity (v in m//...

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  14. A particle moves along x-axis and its acceleration at any time t is a ...

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  15. A particle moves along x-axis and its acceleration at any time t is a ...

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  16. A particle moves along x-axis and its acceleration at any time t is a ...

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  17. A particle moves along x-axis and its acceleration at any time t is a ...

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  18. A point mass is projected, making an acute angle with the horizontal. ...

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  19. A projectile is thorwn with a velocity of 50ms^(-1) at an angle of 53^...

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  20. A projectile is thorwn with a velocity of 50ms^(-1) at an angle of 53^...

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