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In order to balance a see-saw of total l...

In order to balance a see-saw of total length 10.0m, two kids weighing 20 kg and 40 kg are sitting at an end and at a distance x from the fulcrum at the centre, respectively The value x (in cm) is

A

125

B

250

C

450

D

350

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SL ARORA-System of particles & rotational Motion-EXERCISE
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  7. Which is a vector quantity

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  8. Dimensions of angular momentum are

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  9. Joule-second is the unit of

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

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

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

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

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

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  15. Analogue of mass in rotational motion is.

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  16. Moment of inertia of body depends upon

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

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

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

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