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If a particle is moving along straight l...

If a particle is moving along straight line with increasing speed, then

A

Its acceleration is negative

B

Its acceleration may be decreașing

C

Its acceleration is positive

D

Both (2) & (3)

Text Solution

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The correct Answer is:
B
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Knowledge Check

  • A particle is moving along a straight line.

    A
    If the acceleration of the particle is more than that of another object, the particle is moving faster.
    B
    If the acceleration is positive, the speed must be increasing.
    C
    If the acceleration and the velocity have the same sign, the speed must be increasing.
    D
    If the acceleration is zero, the velocity is constant but the speed may be changing.

  • A particle is moving along a straight line with increasing speed. Its angular momentum about a fixed point on this line :

    A
    Goes on increasing
    B
    Goes on decreasing
    C
    May be increasing or decreasing depending on direction of motion
    D
    Remains zero

  • For a particle moving in straight line with increasing speed the sppropriate sign of acceleration a and velocity v can be:

    A
    `agt0` and `vgt0`
    B
    `alt0` and `vlt0`
    C
    `agt0` and `vlt0`
    D
    `alt0` and `vgt0`

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