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Assertion: Centre of mass of a rigid bod...

Assertion: Centre of mass of a rigid body always liees inside the body.
Reason: Centre of mass and centre of gravity coincide if gravity is uniform.

A

(a) If both Assertion and Reason are true and the Reason is correct explanation of the Assertion.

B

(b) If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.

C

(c) If Assertion is true, but the Reason is false.

D

(d) If Assertion is false but the Reason is true.

Text Solution

Verified by Experts

The correct Answer is:
D

In the above case, centre of mass lies outside the body.
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Knowledge Check

  • The centre of gravity

    A
    is the point where gravitational torque is zero
    B
    is the point where weight of a body acts.
    C
    coincides with centre of mass for same acceleration due to gravity for all particles.
    D
    all of above are correct

  • The centre of mass of rigid body cannot lie

    A
    inside the body always
    B
    outside the body always.
    C
    always on its surface
    D
    at two points.

  • The centre of mass of a body

    A
    depends on the choice of co - ordinate system
    B
    is independent of the choice of co - ordinate system .
    C
    may or may not depend on the choice of co - ordinate system
    D
    None of the above

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