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We usually say that time moves in forwa...

We usually say that time moves in forward direction', but time is not a vector quantity . Why ?

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The correct Answer is:
does not obey vector algebra
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Knowledge Check

  • Statement I : A scooter moves towards north and then moves towards south with the same speed. There will be no change in the velocity of scooter. Statement II : Velocity is a vector quantity.

    A
    Statement I is true, statement II is true , statement II is a correct explanation for statement I.
    B
    Statement I is true statement II is true , statement II is not a correct explanation for statement I.
    C
    Statement I is true, statement II is false.
    D
    Statement I is false, statement II is true.

  • If a particle moves in a circle describing equal angles in equal times, its velocity vector

    A
    Remains constant
    B
    Changes in magnitude
    C
    Changes in direction
    D
    Changes both in magnitude and direction

  • Speed of a particle moving in a circle varies time as v=2t then

    A
    Angle between velocity vector and acceleration vector is increasing with time
    B
    `a_l` is constant while `a_r` is increasing with time
    C
    `a_l` is decreasing but `a_r` is increasing.
    D
    Both (1)(2) are wrong.

    • Similar Questions

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    What are the quantities that oscillate in an electromagnetic wave? Show by means of a diagram, the relative orientation of the directions of the electric vector, magnetic vector and propagation of the electromagnetic wave.

    Displacement of a moving particle is directly proportional to the square of the time duration. State whether the particle is moving at a constant velocity or at a constant acceleration.

    A particle moves in the xy plane with velocity vecv = phati+ qxhatj where hati and hatj are unit vectors in the direction of x and y-axis, p and q are constants. At the initial moment of time, the particle was located atthe point x = y = 0. Find the equation of ihe trajectory of the particle.

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