Kinematics Of A Particle (1)

10 Questions | Total Attempts: 55

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Kinematics Of A Particle (1)

Lets play Kaun Banega Future Engineer Ya Doctor. . . . . Kinematics or 1-d motions is an important syllabus for IIT-JEE.


Questions and Answers
  • 1. 
    A balloon starts rising from rest from the ground with an acceleration of 1.25 m/s2. After 8s, a stone is released from the balloon. The stone will :
    • A. 

      Cover a distance of 40 m

    • B. 

      Have a displacement of 50 m

    • C. 

      Reach the ground in 4s

    • D. 

      Begin to move down after being released

  • 2. 
    The figure shows, the displacement-time graph of a particle moving on the X-axis.
    • A. 

      The particle is continuously going in positive x direction

    • B. 

      The particle is at rest

    • C. 

      The velocity increases up to a time , and then becomes constant

    • D. 

      The particle moves at a constant velocity up to a time , and then stops

  • 3. 
    A person standing near the edge of the top of building throws two balls A and B. The ball A is thrown vertically downward with the same speed. The ball A hits the ground with a speed and the ball b hits the ground with a speed. We have
    • A. 

      VA>VB

    • B. 

      VA

    • C. 

      VA=VB

    • D. 

      The relation between VA and VB depends upon the height of the building

  • 4. 
    The displace of a particle moving in a straight line is given by . Here s is in m and t is in seconds. The distance covered by the particle is first 5 seconds is :
    • A. 

      10 m

    • B. 

      26 m

    • C. 

      24 m

    • D. 

      16 m

  • 5. 
    A stone is released from a elevator going up with an acceleration a. The acceleration of the stone after the released is :
    • A. 

      A upward

    • B. 

      (g - a) upward

    • C. 

      (g - a) upward

    • D. 

      g downward

  • 6. 
    6 particles A, B, C, D, E, F are located at the vertices of a regular hexagon of side d. All particles move with the same speed v such that the velocity of A is directed towards B, that of B towards C and so on (F is direction towards A). After what time will the particle meet ?
    • A. 

      2d/v

    • B. 

      3d/v

    • C. 

      2d/3v

    • D. 

      D/v

  • 7. 
    Acceleration-velocity graph of a particle moving in a straight line is as shown in the figure. The slope of velocity-displacement graph is
    • A. 

      Increases linearly

    • B. 

      Decreases linearly

    • C. 

      is constant

    • D. 

      increases parabolically

  • 8. 
    Particle A and B move as shown in figure. The minimum separation between A and B is :
    • A. 

      10 m

    • B. 

      7.92 m

    • C. 

      0 m

    • D. 

      8 m

  • 9. 
    An object may have
    • A. 

      Varying speed without having varying velocity

    • B. 

      Varying velocity without having varying speed

    • C. 

      Nonzero acceleration without having varying velocity

    • D. 

      Nonzero acceleration without varying speed

  • 10. 
    Mark the correct statements :
    • A. 

      The magnitude of the velocity of a particle is equal to its speed

    • B. 

      The magnitude of average velocity in an interval is equal to its average speed in that interval

    • C. 

      It is possible to have a situation in which the speed of a particle is never zero but the average speed is not zero

    • D. 

      It is possible to have a situation in which the speed of the particle is never zero but the average speed is interval is zero