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Statement I: A body can have acceleratio...

Statement I: A body can have acceleration even if its velocity is zero at a given instant .
Statement II: A body is momentarily at rest when it reverses its direction of velocity.

A

If both assertion and reason are true and the reason is the correct explanation of the assertion.

B

If both assertion and reason are true but reason is not the correct explanation of the assertion.

C

If assertion is true but reason is false.

D

If the assertion and reason both are false

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The correct Answer is:
A
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Explore conceptually related problems

Statement I: A body can have acceleration even if its velcity is zero at a given instant . Statement II: A body is momentarily at rest when it reverses its direction of velocity.

Assertion : A body can have acceleration even if its velocity is zero at a given instant of time. Reason : A body is momentarily at rest when it reverses its direction of motion.

Can a body have acceleration without having velocity?

STATEMENT - 1 : If the body is moving in the opposite direction of positive motion, then its speed is negative. STATEMENT - 2 : A scalar quantity is one that must be dimensionless. STATEMENT - 3 : A body is momentarily at rest when it reverse its direction of motion.

Statement I: An object can possess acceleration even at a time when it has uniform speed statement II: It is possible when the direction of momtion keeps changing.

Statement-I : A positive acceleration can be associated with a 'slowing down' of the body. Statement-II : The origin and the positive direction of an axis are a matter of choice.

When a body is in equilibrium, its acceleration is

Assertion: If a body is momentarily at rest, it means that force or acceleration are necessarily zero at that instant. Reason: Force on a body at a given time is determined by the direction of motin only.

Knowledge Check

  • Statement I: A body can have acceleration even if its velcity is zero at a given instant . Statement II: A body is momentarily at rest when it reverses its direction of velocity.

    A
    Statement I is true, Statement II is true, Statement II is a correct explanation for Statement I.
    B
    Statemnt I is true, Statement II is true, Statement II is true, Statement II is false.
    C
    Statement I is true, Statement II is false.
    D
    Statement I is false, Statement II is true.

  • STATEMENT - 1 : If the body is moving in the opposite direction of positive motion, then its speed is negative. STATEMENT - 2 : A scalar quantity is one that must be dimensionless. STATEMENT - 3 : A body is momentarily at rest when it reverse its direction of motion.

    A
    FFT
    B
    TFT
    C
    TTF
    D
    FTT

  • A body is moving with uniform acceleration. Its 'velocity

    A
    will be increasing,
    B
    will be decreasing,
    C
    will be uniform,
    D
    will increase first and decrease afterward.
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