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प्रश्न
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उत्तर
This is because at each point of the circular path, the displacement is perpendicular to the force, which is directed towards the centre, along the radius.
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संबंधित प्रश्न
What is the work done by the moon when it revolves around the earth?
The moon is revolving around the earth in a circular path. How much work is done by the moon?
A boy of mass 40 kg climbs up the stairs and reaches the roof at a height 8 m in 5 s. Calculate:
- the force of gravity acting on the boy,
- the work done by him against the force of gravity,
- the power spent by boy. (Take g = 10 m s-2)
How much work is done when a body of mass m is raised to a height h above the ground?
The work done on an object does not depend on ______.
What is the relationship between Nm and dyne cm?
Is work done a scalar or a vector physical quantity?
A water pump raises 50 kg of water through a height of 25 m in 5s. Calculate the power supplied by the pump (Take: g = 10 N kg−1).
Look at the activity below. Reason out whether or not work is done in the light of your understanding of the term ‘work’.
Food grains are getting dried in the sun.
A man squatting on the ground gets straight up and stand. The force of reaction of ground on the man during the process is ______.
