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Assertion : Linear momentum of a body ...

Assertion : Linear momentum of a body changes even when it is moving uniformly in a circle.
Reason : Force required to move a body uniformly along a straight line is zero.

A

IF both assertion and reason are true and reason is the correct explanation of assertion

B

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

C

If assertion is true but reason is false

D

If assertion is false but reason is true

Text Solution

Verified by Experts

The correct Answer is:
B
p=mv In uniform motion along a circle, v is changing because in direction.
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No force is required to move a body uniformly along a straight line. Comment.

Is some force required to move a body uniformly along a circle?

Knowledge Check

  • Assertion : Linear momentum of a body changes even when it is moving uniformly in a circle. Reason : In uniform circular motion velocity remain constant.

    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.

  • If a force is applied at an angle to a body moving along a straight line:

    A
    the body continues to move in the direction of force
    B
    the body continues to move in its initial direction of motion
    C
    the body moves in a fixed direction other than that of force and initial motion.
    D
    the body moves in a direction other than that of force and initial motion wich varies with time.

  • Assertion : No force is required to move a body unifromly along a straight line Reason : Because F = ma = m (0) =0 .

    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 a correct explanation of the Assertion
    C
    If Assertion is ture but the Reason is false
    D
    If both, Assertion and Reason are false

    • Similar Questions

    Explore conceptually related problems

    A body is moving uniformly along a circle . Is it true ?

    A force is always required to move a body uniformly . Comment .

    A : Acceleration of an object in uniform motion is zero. R : No force is required to move an object uniformly

    The linear momentum of a body can change only in the direction of applied force Comment .

    Assertion : Force is required to move a body uniformly along a circle. Reason : When the motion is uniform, acceleration is zero.

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