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प्रश्न
One horse power is equal to ______.
विकल्प
1000 W
500 W
764 W
746 W
उत्तर
One horse power is equal to 746 W.
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संबंधित प्रश्न
How is the unit horsepower related to the S.I. unit of power?
State and define the S.I. unit of work.
What physical quantity does the electron volt (eV) measure? How is it related to the S.I. unit of that quality?
State two factors on which power spent by a source depends. Explain your answer with examples.
What do you understand by the clockwise and anti clockwise moment of force?
State two conditions for work to be done.
A coolie carries a load of 30 kgf through a distance of 500 m in 5 minutes while another coolie B carries the same load through the same distance in 10 minutes. Compare the
(i) work done, and
(ii) power developed. (Take: g = 10md−2)
A force of 1 kgf displaces a body by a distance of 10 cm
(i) in direction of force,
(ii) normal to the force
(iii) at an angle of 60° to the direction of the force.
Calculate the amount of work done in each case. (Take: g = 9.8 ms−2 )
For the following scenarios, state whether the work done by gravity is positive, negative, or zero.
A person climbs a ladder.
A man raises a box of mass 50 kg to a height of 2 m in 20 s, while another man raises the same box to the same height in 50 s. Compare:
- the work done, and
- the power developed by them. Take g = 10 N kg-1
