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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’.
A green plant is carrying out photosynthesis.
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उत्तर
Photosynthesis is taking place in a green plant; no work is being done here because there is no direct displacement.
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संबंधित प्रश्न
Write the expression for work done by a force.
A force of 30 N acts on a body and moves it through a distance of 5 m in the direction of force. Calculate the work done by the force.
If the work done by a force in moving an object through a distance of 20 cm is 24.2 J, what is the magnitude of the force?
A person of mass 50 kg climbs a tower of height 72 metres. Calculate the work done. (g = 9.8 m s−2).
Is the motion of moon around the earth in circular path an accelerated motion?
What is the work done when the object acted upon by a force remains at rest?
Distinguish between work and power.
