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संबंधित प्रश्न
If the power of a motor is 100 kW, at what speed can it raise a load of 50,000 N?
How is the unit horsepower related to the S.I. unit of power?
A satellite revolves around the earth in a circular orbit. What is the work done by the force of gravity? Give reason.
Name the quality which is measured in kW.
Name two places in india where electricity is generated from nuclear power plants.
State the condition when a force produces
(i) linear motion.
(ii) rotational motion, in a body.
The moment of a force 10 N about a point 0 is 4 Nm. Calculate the distance of point of application of force from the point 0.
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.
A force F when acts on a body, displace it by a distance d in a direction at an angle θ with the direction of the force. Write down the expression for the work done by the force.
