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A disc of radius 0.1 m starts from rest ...

A disc of radius 0.1 m starts from rest with an angular acceleration of ` 4.4 rad//s^(2)` .Then linear velocity of the point on its after 5 s is

A

`0.22ms^(-1)`

B

`2.2ms^(-1)`

C

`4.4 ms^(-1)`

D

`1.1ms^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
B
`v = r omega = r (alphat)`
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NARAYNA-SYSTEM OF PARTICLES AND ROTATIONAL MOTION -EXERCISE - I(H.W)
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  8. The radius of gyration of a body about an axis at a distance of 4cm fr...

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  9. If I moment of inertia of a thin circular plate about an axis passing ...

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  10. Moment of inertia of a hoop suspended from a peg about the peg is

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  11. The moment of inertia of a solid sphere about an axis passing through ...

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  12. The ratio of moments of inertia of solid sphere about axes passing thr...

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  13. Three identical masses, each of mass 1kg, are placed at the corners of...

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  14. The radius of gyration of a body about an axis at a distance of 4cm fr...

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  15. The diameter of a flywheel is increased by 1% keeping the mass same. I...

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  16. The variation of moment of inertia I of a solid sphere of constant...

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  17. Four particles each of mass m are placed at the corners of a square of...

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  18. In the above problem the moment of inertia of four bodies about an...

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  19. In the above problem the moment of inertia of four bodies about an...

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