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a uniform beam, of length L and mass m =...

a uniform beam, of length L and mass m = 1.8 kg, is at rest on two scales. A uniform block, with mass M = 2.7 kg, is at rest on the beam, with its center a distance `L//4` from the beam's left end. What do the scales read?

A

16 N

B

27 N

C

29 N

D

45 N

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SL ARORA-System of particles & rotational Motion-EXERCISE
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  2. In order to balance a see-saw of total length 10.0m, two kids weighing...

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  3. a uniform beam, of length L and mass m = 1.8 kg, is at rest on two sca...

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  4. An automobile engine develops 100 kW when rotating at a speed of 1800 ...

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  5. Angular momentum is

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  6. Which is a vector quantity

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  7. Dimensions of angular momentum are

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  8. Joule-second is the unit of

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  9. Under a constant torque, the angular momentum of a body changes from A...

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  10. A particle of mass m is rotating in a plane in circular path of radius...

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  11. A stationary uniform rod of mass 'm', length 'l' leans against a smoo...

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  12. The torque vec tau on a body about a given point is found to be equal ...

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  13. If a particle of mass m is moving with constant velocity v parallel to...

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  14. Analogue of mass in rotational motion is.

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  15. Moment of inertia of body depends upon

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  16. Moment of inertia of a body does not depend on

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  17. One circular ring and one circular disc, both are having the same mass...

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  18. Moment of inertia of a thin circular plate of mass M, radius R about a...

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  19. Two rings of radius R and nR made of same material have the ratio of m...

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  20. The moment of inertia of a thin circular disc of mass M and radius R a...

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