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A stationary wheel starts rotating about...

A stationary wheel starts rotating about its own axis at constant angular acceleration. If the wheel completes `50` rotations in first `2` seconds, then the number of rotations mades by it in next two seconds is

A

75

B

100

C

125

D

150

Text Solution

Verified by Experts

The correct Answer is:
D
`omega^(2) - omega_(0)^(2) = 2 alpha theta `
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NARAYNA-SYSTEM OF PARTICLES AND ROTATIONAL MOTION -EXERCISE - I(H.W)
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  2. Initial angular velocity of a wheel is 2 rad//s .It rotates with a co...

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  3. A stationary wheel starts rotating about its own axis at constant angu...

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  4. A disc of radius 0.1 m starts from rest with an angular acceleration o...

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  5. Show that overset rarr(a). (overset rarr(b) xx overset rarr(c )) is eq...

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  6. A force is applied on a door at point P making an angle theta wit...

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  7. A meter scale weighs 50 gms and carries 20 gm at one end , the...

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  8. A wire of mass m and length l is bent in the form of circular ring. Th...

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

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

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

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

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

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

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

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

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

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

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

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

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