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The moment of inertia of a body about a ...

The moment of inertia of a body about a given axis is `1.2 kg m^(2)`. Initially, the body is at rest. In order to produce a rotational `KE` of `1500 J`, for how much duration, an acceleration of `25 rad s^(-2)` must be applied about that axis ?

A

`4s`

B

`2s`

C

`8s`

D

`10s`

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AAKASH INSTITUTE ENGLISH-SYSTEM OF PARTICLES AND ROTATIONAL MOTION-Assignment (Section - A) Objective Type Questions (One option is correct)
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  5. A solid sphere is rolling without slipping on a horizontal plane. The ...

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  6. If I(1) is the moment of inertia of a thin rod about an axis perpendic...

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  7. A wheel of moment of inertia 30 kg m^(2) is rotating at 10 rotations p...

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  8. A ring of mass 1kg and radius 1m is moving with a velocity of 1m//s by...

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  9. A disc and a ring of the same mass are rolling down frictionless incli...

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  10. The moment of inertia of a thing uniform rod of length L and mass M, a...

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  11. Two bodies with moment of inertia l(1) and l(2) (l(1) gt l(2)) have eq...

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  12. From a circular disc of mass M and radius R, a part of 60^(@) is remov...

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  13. A body is rolling without slipping on a horizontal plane. The rotation...

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  14. The angular velocity of a body is vecomega=3hati+5hatj+6hatk("radian"/...

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  15. When a solid cylinder rolls without slipping the ratio of kinetic ener...

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  16. The torque required to stop a wheel having moment of inertia 5xx10^(-3...

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  17. The position vector of a point is (3hati-2hatj+6hatk)m. The i^(th) com...

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  18. A particle performing uniform circular motion gas angular momentum L. ...

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  19. A thin wire of length l and mass m is bent in the form of a semicircle...

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  20. A constant torque acting on a uniform circular wheel changes its angul...

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