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प्रश्न
Name the quality which is measured in Wh.
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उत्तर
Energy is measured in Wh
संबंधित प्रश्न
An ox can apply a maximum force of 1000 N. It is taking part in a cart race and is able to pull the cart at a constant speed of 30 ms-1 while making its best effort. Calculate the power developed by the ox.
A body of mass m is moving with a uniform velocity u. A force is applied on the body due to which its velocity changes from u to v. How much work is being done by the force?
What do you understand by the clockwise and anti clockwise moment of force?
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.
In the following case write yes, if the work is being done and no if no work is being done.
A man trying to push a wall.
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.
What is the S.I. unit of work? Define it.
