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प्रश्न
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उत्तर
The SI unit of centripetal force is newton (N).
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संबंधित प्रश्न
When a body is placed on a table top, it exerts a force equal to its weight downwards on the table top but does not move or fall
1) Name the force exerted by the table top
2) What is the direction of the force?
State and define the S.I. unit of work.
State two factors on which power spent by a source depends. Explain your answer with examples.
A body, when acted upon by a force of 10 kgf, gets displaced by 0.5 m. Calculate the work done by the force, when the displacement is (i) in the direction of force, (ii) at an angle of 60° with the force, and (iii) normal to the force. (g = 10 N kg-1)
Name the quality which is measured in eV
What is a centripetal force?
Work is a scalar quantity because it is a measure of transfer of energy without indicating any direction
A boy takes 3 minutes to lift a 20 litre water bucket from a 20 m deep well, while his father does it in 2 minutes. Compare:
- the work, and
- power developed by them.
State two conditions for work to be done.
