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प्रश्न
Look at the activity below. Reason out whether or not work is done in the light of your understanding of the term ‘work’.
Suma is swimming in a pond.
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उत्तर
Suma is moving forward while swimming by applying force in a particular direction and is getting displaced in the direction of force hence, work is being done.
संबंधित प्रश्न
The moon is revolving around the earth in a circular path. How much work is done by the moon?
A box of weight 150 kgf has gravitational potential energy stored in it equal to 14700 J. Find the height of the box above the ground. (Take g = 9.8 N kg-1)
State two advantage of producing hydroelectricity.
Write the formula for work done on a body when the body moves at an angle to the direction of force. Give the meaning of each symbol used.
Determine the amount of work done when an object is displaced at an angle of 30° with respect to the direction of the applied force.
How many joules are there in 1 mega joule?
Explain, why submarines are able to dive underwater as well as a sail on the surface of the water?
One labourer carried four pans of road metal through a distance of 100 metres. If he carries two pans of road metal through a 200 metre distance ______ work will be done.
